20862872315 has 16 divisors (see below), whose sum is σ = 26132528448. Its totient is φ = 15959387136.

The previous prime is 20862872299. The next prime is 20862872323. The reversal of 20862872315 is 51327826802.

It is a cyclic number.

It is not a de Polignac number, because 20862872315 - 2⁴ = 20862872299 is a prime.

It is a Duffinian 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, 341759 + ... + 398151.

It is an arithmetic number, because the mean of its divisors is an integer number (1633283028).

Almost surely, 2^20862872315 is an apocalyptic number.

20862872315 is a deficient number, since it is larger than the sum of its proper divisors (5269656133).

20862872315 is a wasteful number, since it uses less digits than its factorization.

20862872315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59638.

The product of its (nonzero) digits is 322560, while the sum is 44.

The spelling of 20862872315 in words is "twenty billion, eight hundred sixty-two million, eight hundred seventy-two thousand, three hundred fifteen".