22494637368 has 72 divisors (see below), whose sum is σ = 70869595680. Its totient is φ = 6427038240.

The previous prime is 22494637357. The next prime is 22494637369. The reversal of 22494637368 is 86373649422.

22494637368 is a `hidden beast` number, since 2 + 249 + 4 + 6 + 37 + 368 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22494637369) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3184488 + ... + 3191543.

It is an arithmetic number, because the mean of its divisors is an integer number (984299940).

Almost surely, 2^22494637368 is an apocalyptic number.

22494637368 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

22494637368 is an abundant number, since it is smaller than the sum of its proper divisors (48374958312).

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

22494637368 is a wasteful number, since it uses less digits than its factorization.

22494637368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6376057 (or 6376043 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 54.

The spelling of 22494637368 in words is "twenty-two billion, four hundred ninety-four million, six hundred thirty-seven thousand, three hundred sixty-eight".