21464700376 has 32 divisors (see below), whose sum is σ = 46001118240. Its totient is φ = 9198091008.

The previous prime is 21464700353. The next prime is 21464700377. The reversal of 21464700376 is 67300746412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21464700377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 639796 + ... + 672508.

It is an arithmetic number, because the mean of its divisors is an integer number (1437534945).

Almost surely, 2^21464700376 is an apocalyptic number.

It is an amenable number.

21464700376 is an abundant number, since it is smaller than the sum of its proper divisors (24536417864).

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

21464700376 is a wasteful number, since it uses less digits than its factorization.

21464700376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44443 (or 44439 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The spelling of 21464700376 in words is "twenty-one billion, four hundred sixty-four million, seven hundred thousand, three hundred seventy-six".