15493964512 has 48 divisors (see below), whose sum is σ = 33407020080. Its totient is φ = 7029844992.

The previous prime is 15493964501. The next prime is 15493964533. The reversal of 15493964512 is 21546939451.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291093 + ... + 340180.

It is an arithmetic number, because the mean of its divisors is an integer number (695979585).

Almost surely, 2^15493964512 is an apocalyptic number.

It is an amenable number.

15493964512 is an abundant number, since it is smaller than the sum of its proper divisors (17913055568).

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

15493964512 is a wasteful number, since it uses less digits than its factorization.

15493964512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631355 (or 631347 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 49.

The spelling of 15493964512 in words is "fifteen billion, four hundred ninety-three million, nine hundred sixty-four thousand, five hundred twelve".