22628468900 has 36 divisors (see below), whose sum is σ = 49133560980. Its totient is φ = 9045897600.

The previous prime is 22628468873. The next prime is 22628468911. The reversal of 22628468900 is 986482622.

It can be written as a sum of positive squares in 6 ways, for example, as 624900004 + 22003568896 = 24998^2 + 148336^2 .

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, 99110 + ... + 234690.

Almost surely, 2^22628468900 is an apocalyptic number.

22628468900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22628468900 is an abundant number, since it is smaller than the sum of its proper divisors (26505092080).

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

22628468900 is a wasteful number, since it uses less digits than its factorization.

22628468900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137264 (or 137257 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 47.

The spelling of 22628468900 in words is "twenty-two billion, six hundred twenty-eight million, four hundred sixty-eight thousand, nine hundred".