10439943564 has 48 divisors (see below), whose sum is σ = 24813936000. Its totient is φ = 3415310976.

The previous prime is 10439943541. The next prime is 10439943601. The reversal of 10439943564 is 46534993401.

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, 424887 + ... + 448785.

It is an arithmetic number, because the mean of its divisors is an integer number (516957000).

Almost surely, 2^10439943564 is an apocalyptic number.

It is an amenable number.

10439943564 is an abundant number, since it is smaller than the sum of its proper divisors (14373992436).

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

10439943564 is a wasteful number, since it uses less digits than its factorization.

10439943564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24582 (or 24580 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 10439943564 in words is "ten billion, four hundred thirty-nine million, nine hundred forty-three thousand, five hundred sixty-four".