22994937891 has 24 divisors (see below), whose sum is σ = 34970907920. Its totient is φ = 14519860416.

The previous prime is 22994937883. The next prime is 22994937893. The reversal of 22994937891 is 19873949922.

It is not a de Polignac number, because 22994937891 - 2³ = 22994937883 is a prime.

It is a super-2 number, since 2×22994937891² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22994937893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 917361 + ... + 942093.

Almost surely, 2^22994937891 is an apocalyptic number.

22994937891 is a deficient number, since it is larger than the sum of its proper divisors (11975970029).

22994937891 is a wasteful number, since it uses less digits than its factorization.

22994937891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30195 (or 30192 counting only the distinct ones).

The product of its digits is 17635968, while the sum is 63.

The spelling of 22994937891 in words is "twenty-two billion, nine hundred ninety-four million, nine hundred thirty-seven thousand, eight hundred ninety-one".