20713812559338 has 64 divisors (see below), whose sum is σ = 45404798496768. Its totient is φ = 6273031080960.

The previous prime is 20713812559309. The next prime is 20713812559343. The reversal of 20713812559338 is 83395521831702.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21129193 + ... + 22087788.

It is an arithmetic number, because the mean of its divisors is an integer number (709449976512).

Almost surely, 2^{20713812559338} is an apocalyptic number.

20713812559338 is an abundant number, since it is smaller than the sum of its proper divisors (24690985937430).

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

20713812559338 is a wasteful number, since it uses less digits than its factorization.

20713812559338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43217167.

The product of its (nonzero) digits is 10886400, while the sum is 57.

The spelling of 20713812559338 in words is "twenty trillion, seven hundred thirteen billion, eight hundred twelve million, five hundred fifty-nine thousand, three hundred thirty-eight".