21924748992 has 28 divisors (see below), whose sum is σ = 58009232216. Its totient is φ = 7308249600.

The previous prime is 21924748991. The next prime is 21924748997. The reversal of 21924748992 is 29984742912.

It is not an unprimeable number, because it can be changed into a prime (21924748991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57095509 + ... + 57095892.

Almost surely, 2^21924748992 is an apocalyptic number.

It is an amenable number.

21924748992 is an abundant number, since it is smaller than the sum of its proper divisors (36084483224).

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

21924748992 is a wasteful number, since it uses less digits than its factorization.

21924748992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114191416 (or 114191406 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 57.

The spelling of 21924748992 in words is "twenty-one billion, nine hundred twenty-four million, seven hundred forty-eight thousand, nine hundred ninety-two".