20579633973912 has 64 divisors (see below), whose sum is σ = 55431410791680. Its totient is φ = 6329371761792.

The previous prime is 20579633973907. The next prime is 20579633973949. The reversal of 20579633973912 is 21937933697502.

It is a congruent number.

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, 14003788 + ... + 15403419.

It is an arithmetic number, because the mean of its divisors is an integer number (866115793620).

Almost surely, 2^{20579633973912} is an apocalyptic number.

It is an amenable number.

20579633973912 is an abundant number, since it is smaller than the sum of its proper divisors (34851776817768).

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

20579633973912 is a wasteful number, since it uses less digits than its factorization.

20579633973912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29409472 (or 29409468 counting only the distinct ones).

The product of its (nonzero) digits is 115736040, while the sum is 66.

The spelling of 20579633973912 in words is "twenty trillion, five hundred seventy-nine billion, six hundred thirty-three million, nine hundred seventy-three thousand, nine hundred twelve".