22864520428 has 12 divisors (see below), whose sum is σ = 42118853560. Its totient is φ = 10830562272.

The previous prime is 22864520387. The next prime is 22864520443. The reversal of 22864520428 is 82402546822.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150424401 + ... + 150424552.

Almost surely, 2^22864520428 is an apocalyptic number.

It is an amenable number.

22864520428 is a deficient number, since it is larger than the sum of its proper divisors (19254333132).

22864520428 is a wasteful number, since it uses less digits than its factorization.

22864520428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300848976 (or 300848974 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 43.

The spelling of 22864520428 in words is "twenty-two billion, eight hundred sixty-four million, five hundred twenty thousand, four hundred twenty-eight".