139111195500 has 768 divisors, whose sum is σ = 494010316800. Its totient is φ = 33666969600.

The previous prime is 139111195477. The next prime is 139111195547. The reversal of 139111195500 is 5591111931.

It is a happy number.

139111195500 is a `hidden beast` number, since 1 + 3 + 91 + 1 + 1 + 19 + 550 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 1276249446 + ... + 1276249554.

It is an arithmetic number, because the mean of its divisors is an integer number (643242600).

Almost surely, 2^139111195500 is an apocalyptic number.

139111195500 is a gapful number since it is divisible by the number (10) 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 139111195500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247005158400).

139111195500 is an abundant number, since it is smaller than the sum of its proper divisors (354899121300).

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

139111195500 is a wasteful number, since it uses less digits than its factorization.

139111195500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 6075, while the sum is 36.

The spelling of 139111195500 in words is "one hundred thirty-nine billion, one hundred eleven million, one hundred ninety-five thousand, five hundred".