13899534891192 has 96 divisors (see below), whose sum is σ = 38125659280800. Its totient is φ = 4574201352192.

The previous prime is 13899534891191. The next prime is 13899534891217. The reversal of 13899534891192 is 29119843599831.

13899534891192 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 9 + 5 + 348 + 91 + 192 = 666.

It is a Smith number, since the sum of its digits (72) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a self number, because there is not a number n which added to its sum of digits gives 13899534891192.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13899534891191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423453 + ... + 5289459.

It is an arithmetic number, because the mean of its divisors is an integer number (397142284175).

Almost surely, 2^{13899534891192} is an apocalyptic number.

13899534891192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13899534891192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19062829640400).

13899534891192 is an abundant number, since it is smaller than the sum of its proper divisors (24226124389608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13899534891192 is a wasteful number, since it uses less digits than its factorization.

13899534891192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4866525 (or 4866518 counting only the distinct ones).

The product of its digits is 151165440, while the sum is 72.

Adding to 13899534891192 its sum of digits (72), we get a square (13899534891264 = 3728208²).

The spelling of 13899534891192 in words is "thirteen trillion, eight hundred ninety-nine billion, five hundred thirty-four million, eight hundred ninety-one thousand, one hundred ninety-two".