20579139315 has 48 divisors (see below), whose sum is σ = 42558233760. Its totient is φ = 9407603520.

The previous prime is 20579139299. The next prime is 20579139367. The reversal of 20579139315 is 51393197502.

It is not a de Polignac number, because 20579139315 - 2⁴ = 20579139299 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1548876 + ... + 1562105.

It is an arithmetic number, because the mean of its divisors is an integer number (886629870).

Almost surely, 2^20579139315 is an apocalyptic number.

20579139315 is an abundant number, since it is smaller than the sum of its proper divisors (21979094445).

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

20579139315 is a wasteful number, since it uses less digits than its factorization.

20579139315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111009 (or 3110996 counting only the distinct ones).

The product of its (nonzero) digits is 255150, while the sum is 45.

The spelling of 20579139315 in words is "twenty billion, five hundred seventy-nine million, one hundred thirty-nine thousand, three hundred fifteen".