22536763884 has 72 divisors (see below), whose sum is σ = 58894115280. Its totient is φ = 7261857792.

The previous prime is 22536763883. The next prime is 22536763897. The reversal of 22536763884 is 48836763522.

22536763884 is a `hidden beast` number, since 2 + 2 + 536 + 76 + 38 + 8 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 22536763884.

It is not an unprimeable number, because it can be changed into a prime (22536763883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75112 + ... + 225200.

Almost surely, 2^22536763884 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22536763884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29447057640).

22536763884 is an abundant number, since it is smaller than the sum of its proper divisors (36357351396).

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

22536763884 is a wasteful number, since it uses less digits than its factorization.

22536763884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150239 (or 150234 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 54.

The spelling of 22536763884 in words is "twenty-two billion, five hundred thirty-six million, seven hundred sixty-three thousand, eight hundred eighty-four".