22939381954 has 4 divisors (see below), whose sum is σ = 34409072934. Its totient is φ = 11469690976.

The previous prime is 22939381951. The next prime is 22939381981. The reversal of 22939381954 is 45918393922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45918393922 = 2 ⋅22959196961.

It can be written as a sum of positive squares in only one way, i.e., 17273056329 + 5666325625 = 131427^2 + 75275^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22939381895 and 22939381904.

It is not an unprimeable number, because it can be changed into a prime (22939381951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5734845487 + ... + 5734845490.

Almost surely, 2^22939381954 is an apocalyptic number.

22939381954 is a deficient number, since it is larger than the sum of its proper divisors (11469690980).

22939381954 is a wasteful number, since it uses less digits than its factorization.

22939381954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11469690979.

The product of its digits is 4199040, while the sum is 55.

The spelling of 22939381954 in words is "twenty-two billion, nine hundred thirty-nine million, three hundred eighty-one thousand, nine hundred fifty-four".