13798785888 has 96 divisors (see below), whose sum is σ = 40513374720. Its totient is φ = 4569091200.

The previous prime is 13798785877. The next prime is 13798785907. The reversal of 13798785888 is 88858789731.

13798785888 is a `hidden beast` number, since 1 + 37 + 9 + 8 + 7 + 8 + 588 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77581 + ... + 183347.

It is an arithmetic number, because the mean of its divisors is an integer number (422014320).

Almost surely, 2^13798785888 is an apocalyptic number.

13798785888 is a gapful number since it is divisible by the number (18) 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 13798785888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20256687360).

13798785888 is an abundant number, since it is smaller than the sum of its proper divisors (26714588832).

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

13798785888 is a wasteful number, since it uses less digits than its factorization.

13798785888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105937 (or 105923 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 72.

The spelling of 13798785888 in words is "thirteen billion, seven hundred ninety-eight million, seven hundred eighty-five thousand, eight hundred eighty-eight".