21632400750 has 32 divisors (see below), whose sum is σ = 53994474144. Its totient is φ = 5768640000.

The previous prime is 21632400731. The next prime is 21632400773. The reversal of 21632400750 is 5700423612.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14420851 + ... + 14422350.

It is an arithmetic number, because the mean of its divisors is an integer number (1687327317).

Almost surely, 2^21632400750 is an apocalyptic number.

21632400750 is an abundant number, since it is smaller than the sum of its proper divisors (32362073394).

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

21632400750 is a wasteful number, since it uses less digits than its factorization.

21632400750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28843221 (or 28843211 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 21632400750 in words is "twenty-one billion, six hundred thirty-two million, four hundred thousand, seven hundred fifty".