21623263700 has 36 divisors (see below), whose sum is σ = 48962595360. Its totient is φ = 8273247840.

The previous prime is 21623263687. The next prime is 21623263729. The reversal of 21623263700 is 736232612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4698410 + ... + 4703009.

Almost surely, 2^21623263700 is an apocalyptic number.

21623263700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21623263700 is an abundant number, since it is smaller than the sum of its proper divisors (27339331660).

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

21623263700 is a wasteful number, since it uses less digits than its factorization.

21623263700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9401456 (or 9401449 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 32.

The spelling of 21623263700 in words is "twenty-one billion, six hundred twenty-three million, two hundred sixty-three thousand, seven hundred".