22949137764 has 144 divisors (see below), whose sum is σ = 70233654400. Its totient is φ = 6172028928.

The previous prime is 22949137763. The next prime is 22949137781. The reversal of 22949137764 is 46773194922.

22949137764 is a `hidden beast` number, since 2 + 29 + 491 + 3 + 77 + 64 = 666.

It is a super-2 number, since 2×22949137764² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 22949137764.

It is not an unprimeable number, because it can be changed into a prime (22949137763) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 736452 + ... + 766980.

Almost surely, 2^22949137764 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 22949137764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35116827200).

22949137764 is an abundant number, since it is smaller than the sum of its proper divisors (47284516636).

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

22949137764 is a wasteful number, since it uses less digits than its factorization.

22949137764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30722 (or 30717 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 54.

The spelling of 22949137764 in words is "twenty-two billion, nine hundred forty-nine million, one hundred thirty-seven thousand, seven hundred sixty-four".