15902425404 has 18 divisors (see below), whose sum is σ = 40197797640. Its totient is φ = 5300808456.

The previous prime is 15902425369. The next prime is 15902425417. The reversal of 15902425404 is 40452420951.

It is a happy number.

15902425404 is a `hidden beast` number, since 1 + 5 + 9 + 0 + 242 + 5 + 404 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 441734039 = 15902425404 / (1 + 5 + 9 + 0 + 2 + 4 + 2 + 5 + 4 + 0 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 220866984 + ... + 220867055.

It is an arithmetic number, because the mean of its divisors is an integer number (2233210980).

Almost surely, 2^15902425404 is an apocalyptic number.

It is an amenable number.

15902425404 is an abundant number, since it is smaller than the sum of its proper divisors (24295372236).

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

15902425404 is a wasteful number, since it uses less digits than its factorization.

15902425404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441734049 (or 441734044 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 15902425404 in words is "fifteen billion, nine hundred two million, four hundred twenty-five thousand, four hundred four".