21302732696 has 64 divisors (see below), whose sum is σ = 45861396480. Its totient is φ = 9087321600.

The previous prime is 21302732669. The next prime is 21302732707. The reversal of 21302732696 is 69623720312.

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, 17736896 + ... + 17738096.

It is an arithmetic number, because the mean of its divisors is an integer number (716584320).

Almost surely, 2^21302732696 is an apocalyptic number.

It is an amenable number.

21302732696 is an abundant number, since it is smaller than the sum of its proper divisors (24558663784).

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

21302732696 is a wasteful number, since it uses less digits than its factorization.

21302732696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2424 (or 2420 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 41.

The spelling of 21302732696 in words is "twenty-one billion, three hundred two million, seven hundred thirty-two thousand, six hundred ninety-six".