22487901968 has 40 divisors (see below), whose sum is σ = 49868796288. Its totient is φ = 9623319552.

The previous prime is 22487901929. The next prime is 22487902009. The reversal of 22487901968 is 86910978422.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73796 + ... + 224547.

Almost surely, 2^22487901968 is an apocalyptic number.

22487901968 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22487901968 is an abundant number, since it is smaller than the sum of its proper divisors (27380894320).

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

22487901968 is a wasteful number, since it uses less digits than its factorization.

22487901968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299031 (or 299025 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 22487901968 in words is "twenty-two billion, four hundred eighty-seven million, nine hundred one thousand, nine hundred sixty-eight".