15423665968 has 20 divisors (see below), whose sum is σ = 29958638080. Its totient is φ = 7692404544.

The previous prime is 15423665899. The next prime is 15423665987. The reversal of 15423665968 is 86956632451.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1207728 + ... + 1220431.

It is an arithmetic number, because the mean of its divisors is an integer number (1497931904).

Almost surely, 2^15423665968 is an apocalyptic number.

It is an amenable number.

15423665968 is a deficient number, since it is larger than the sum of its proper divisors (14534972112).

15423665968 is a wasteful number, since it uses less digits than its factorization.

15423665968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428564 (or 2428558 counting only the distinct ones).

The product of its digits is 9331200, while the sum is 55.

The spelling of 15423665968 in words is "fifteen billion, four hundred twenty-three million, six hundred sixty-five thousand, nine hundred sixty-eight".