21703274715 has 32 divisors (see below), whose sum is σ = 35265484800. Its totient is φ = 11396301696.

The previous prime is 21703274687. The next prime is 21703274737. The reversal of 21703274715 is 51747230712.

It is not a de Polignac number, because 21703274715 - 2¹⁶ = 21703209179 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226686 + ... + 307884.

It is an arithmetic number, because the mean of its divisors is an integer number (1102046400).

Almost surely, 2^21703274715 is an apocalyptic number.

21703274715 is a deficient number, since it is larger than the sum of its proper divisors (13562210085).

21703274715 is a wasteful number, since it uses less digits than its factorization.

21703274715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81483.

The product of its (nonzero) digits is 82320, while the sum is 39.

The spelling of 21703274715 in words is "twenty-one billion, seven hundred three million, two hundred seventy-four thousand, seven hundred fifteen".