21807452296 has 16 divisors (see below), whose sum is σ = 46730255040. Its totient is φ = 9346050960.

The previous prime is 21807452243. The next prime is 21807452339. The reversal of 21807452296 is 69225470812.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194709340 + ... + 194709451.

It is an arithmetic number, because the mean of its divisors is an integer number (2920640940).

Almost surely, 2^21807452296 is an apocalyptic number.

It is an amenable number.

21807452296 is an abundant number, since it is smaller than the sum of its proper divisors (24922802744).

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

21807452296 is a wasteful number, since it uses less digits than its factorization.

21807452296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389418804 (or 389418800 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 21807452296 in words is "twenty-one billion, eight hundred seven million, four hundred fifty-two thousand, two hundred ninety-six".