21712744304 has 40 divisors (see below), whose sum is σ = 44300178000. Its totient is φ = 10280894976.

The previous prime is 21712744259. The next prime is 21712744331. The reversal of 21712744304 is 40344721712.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 835052 + ... + 860660.

It is an arithmetic number, because the mean of its divisors is an integer number (1107504450).

Almost surely, 2^21712744304 is an apocalyptic number.

It is an amenable number.

21712744304 is an abundant number, since it is smaller than the sum of its proper divisors (22587433696).

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

21712744304 is a wasteful number, since it uses less digits than its factorization.

21712744304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28425 (or 28419 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The spelling of 21712744304 in words is "twenty-one billion, seven hundred twelve million, seven hundred forty-four thousand, three hundred four".