15902091044 has 12 divisors (see below), whose sum is σ = 31804182144. Its totient is φ = 6815181864.

The previous prime is 15902091041. The next prime is 15902091089. The reversal of 15902091044 is 44019020951.

15902091044 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 15902090995 and 15902091013.

It is not an unprimeable number, because it can be changed into a prime (15902091041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283965884 + ... + 283965939.

It is an arithmetic number, because the mean of its divisors is an integer number (2650348512).

Almost surely, 2^15902091044 is an apocalyptic number.

15902091044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

15902091044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15902091044 is a wasteful number, since it uses less digits than its factorization.

15902091044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567931834 (or 567931832 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 15902091044 in words is "fifteen billion, nine hundred two million, ninety-one thousand, forty-four".