20713364977908 has 48 divisors (see below), whose sum is σ = 50480526813696. Its totient is φ = 6597977416800.

The previous prime is 20713364977897. The next prime is 20713364977933. The reversal of 20713364977908 is 80977946331702.

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, 35413266 + ... + 35993417.

It is an arithmetic number, because the mean of its divisors is an integer number (1051677641952).

Almost surely, 2^{20713364977908} is an apocalyptic number.

It is an amenable number.

20713364977908 is an abundant number, since it is smaller than the sum of its proper divisors (29767161835788).

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

20713364977908 is a wasteful number, since it uses less digits than its factorization.

20713364977908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71407764 (or 71407762 counting only the distinct ones).

The product of its (nonzero) digits is 96018048, while the sum is 66.

The spelling of 20713364977908 in words is "twenty trillion, seven hundred thirteen billion, three hundred sixty-four million, nine hundred seventy-seven thousand, nine hundred eight".