15949470875 has 16 divisors (see below), whose sum is σ = 21436091040. Its totient is φ = 11778069600.

The previous prime is 15949470863. The next prime is 15949470931. The reversal of 15949470875 is 57807494951.

It is not a de Polignac number, because 15949470875 - 2²⁰ = 15948422299 is a prime.

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, 4905905 + ... + 4909154.

It is an arithmetic number, because the mean of its divisors is an integer number (1339755690).

Almost surely, 2^15949470875 is an apocalyptic number.

15949470875 is a deficient number, since it is larger than the sum of its proper divisors (5486620165).

15949470875 is an equidigital number, since it uses as much as digits as its factorization.

15949470875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9815087 (or 9815077 counting only the distinct ones).

The product of its (nonzero) digits is 12700800, while the sum is 59.

The spelling of 15949470875 in words is "fifteen billion, nine hundred forty-nine million, four hundred seventy thousand, eight hundred seventy-five".