22681647025794 has 24 divisors (see below), whose sum is σ = 49318456711212. Its totient is φ = 7533643138560.

The previous prime is 22681647025783. The next prime is 22681647025811. The reversal of 22681647025794 is 49752074618622.

22681647025794 is a `hidden beast` number, since 2 + 2 + 6 + 8 + 16 + 47 + 0 + 2 + 579 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22681263375225 + 383650569 = 4762485^2 + 19587^2 .

It is a super-2 number, since 2×22681647025794² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

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, 2242150639 + ... + 2242160754.

Almost surely, 2^{22681647025794} is an apocalyptic number.

22681647025794 is an abundant number, since it is smaller than the sum of its proper divisors (26636809685418).

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

22681647025794 is a wasteful number, since it uses less digits than its factorization.

22681647025794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484311682 (or 4484311679 counting only the distinct ones).

The product of its (nonzero) digits is 81285120, while the sum is 63.

The spelling of 22681647025794 in words is "twenty-two trillion, six hundred eighty-one billion, six hundred forty-seven million, twenty-five thousand, seven hundred ninety-four".