20879927104 has 14 divisors (see below), whose sum is σ = 41433605474. Its totient is φ = 10439963520.

The previous prime is 20879927087. The next prime is 20879927141. The reversal of 20879927104 is 40172997802.

It can be written as a sum of positive squares in only one way, i.e., 18537367104 + 2342560000 = 136152^2 + 48400^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163124367 + ... + 163124494.

Almost surely, 2^20879927104 is an apocalyptic number.

It is an amenable number.

20879927104 is a deficient number, since it is larger than the sum of its proper divisors (20553678370).

20879927104 is an equidigital number, since it uses as much as digits as its factorization.

20879927104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326248873 (or 326248863 counting only the distinct ones).

The product of its (nonzero) digits is 508032, while the sum is 49.

The spelling of 20879927104 in words is "twenty billion, eight hundred seventy-nine million, nine hundred twenty-seven thousand, one hundred four".