21763958924 has 24 divisors (see below), whose sum is σ = 38185943040. Its totient is φ = 10853717904.

The previous prime is 21763958857. The next prime is 21763958933. The reversal of 21763958924 is 42985936712.

It is a self number, because there is not a number n which added to its sum of digits gives 21763958924.

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, 6072437 + ... + 6076019.

It is an arithmetic number, because the mean of its divisors is an integer number (1591080960).

Almost surely, 2^21763958924 is an apocalyptic number.

It is an amenable number.

21763958924 is a deficient number, since it is larger than the sum of its proper divisors (16421984116).

21763958924 is a wasteful number, since it uses less digits than its factorization.

21763958924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7109 (or 7107 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 56.

The spelling of 21763958924 in words is "twenty-one billion, seven hundred sixty-three million, nine hundred fifty-eight thousand, nine hundred twenty-four".