15870856352 has 48 divisors (see below), whose sum is σ = 33976051200. Its totient is φ = 7253874432.

The previous prime is 15870856333. The next prime is 15870856357. The reversal of 15870856352 is 25365807851.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 15870856352.

It is not an unprimeable number, because it can be changed into a prime (15870856357) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142352 + ... + 228047.

It is an arithmetic number, because the mean of its divisors is an integer number (707834400).

Almost surely, 2^15870856352 is an apocalyptic number.

It is an amenable number.

15870856352 is an abundant number, since it is smaller than the sum of its proper divisors (18105194848).

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

15870856352 is a wasteful number, since it uses less digits than its factorization.

15870856352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370525 (or 370517 counting only the distinct ones).

The product of its (nonzero) digits is 2016000, while the sum is 50.

The spelling of 15870856352 in words is "fifteen billion, eight hundred seventy million, eight hundred fifty-six thousand, three hundred fifty-two".