22625143981 has 12 divisors (see below), whose sum is σ = 24881176096. Its totient is φ = 20558209320.

The previous prime is 22625143963. The next prime is 22625144011. The reversal of 22625143981 is 18934152622.

It is not a de Polignac number, because 22625143981 - 2²⁵ = 22591589549 is a prime.

It is a super-2 number, since 2×22625143981² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22625143951) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207160 + ... + 296926.

Almost surely, 2^22625143981 is an apocalyptic number.

It is an amenable number.

22625143981 is a deficient number, since it is larger than the sum of its proper divisors (2256032115).

22625143981 is a wasteful number, since it uses less digits than its factorization.

22625143981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91872 (or 91861 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 22625143981 in words is "twenty-two billion, six hundred twenty-five million, one hundred forty-three thousand, nine hundred eighty-one".