15850910464 has 18 divisors (see below), whose sum is σ = 31639903820. Its totient is φ = 7925455104.

The previous prime is 15850910459. The next prime is 15850910479. The reversal of 15850910464 is 46401905851.

It is a self number, because there is not a number n which added to its sum of digits gives 15850910464.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30958554 + ... + 30959065.

Almost surely, 2^15850910464 is an apocalyptic number.

It is an amenable number.

15850910464 is a deficient number, since it is larger than the sum of its proper divisors (15788993356).

15850910464 is an frugal number, since it uses more digits than its factorization.

15850910464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61917635 (or 61917621 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 43.

The spelling of 15850910464 in words is "fifteen billion, eight hundred fifty million, nine hundred ten thousand, four hundred sixty-four".