22478954492 has 36 divisors (see below), whose sum is σ = 41550473160. Its totient is φ = 10639488672.

The previous prime is 22478954489. The next prime is 22478954551. The reversal of 22478954492 is 29445987422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2055134 + ... + 2066042.

It is an arithmetic number, because the mean of its divisors is an integer number (1154179810).

Almost surely, 2^22478954492 is an apocalyptic number.

It is an amenable number.

22478954492 is a deficient number, since it is larger than the sum of its proper divisors (19071518668).

22478954492 is a wasteful number, since it uses less digits than its factorization.

22478954492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12378 (or 12357 counting only the distinct ones).

The product of its digits is 11612160, while the sum is 56.

The spelling of 22478954492 in words is "twenty-two billion, four hundred seventy-eight million, nine hundred fifty-four thousand, four hundred ninety-two".