22077690687 has 36 divisors (see below), whose sum is σ = 35004986640. Its totient is φ = 13400090496.

The previous prime is 22077690667. The next prime is 22077690703. The reversal of 22077690687 is 78609677022.

It is not a de Polignac number, because 22077690687 - 2²² = 22073496383 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22077690667) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11614 + ... + 210452.

It is an arithmetic number, because the mean of its divisors is an integer number (972360740).

Almost surely, 2^22077690687 is an apocalyptic number.

22077690687 is a deficient number, since it is larger than the sum of its proper divisors (12927295953).

22077690687 is a wasteful number, since it uses less digits than its factorization.

22077690687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198944 (or 198928 counting only the distinct ones).

The product of its (nonzero) digits is 3556224, while the sum is 54.

The spelling of 22077690687 in words is "twenty-two billion, seventy-seven million, six hundred ninety thousand, six hundred eighty-seven".