22478731364 has 6 divisors (see below), whose sum is σ = 39337779894. Its totient is φ = 11239365680.

The previous prime is 22478731361. The next prime is 22478731391. The reversal of 22478731364 is 46313787422.

It can be written as a sum of positive squares in only one way, i.e., 22437643264 + 41088100 = 149792^2 + 6410^2 .

It is not an unprimeable number, because it can be changed into a prime (22478731361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2809841417 + ... + 2809841424.

It is an arithmetic number, because the mean of its divisors is an integer number (6556296649).

Almost surely, 2^22478731364 is an apocalyptic number.

It is an amenable number.

22478731364 is a deficient number, since it is larger than the sum of its proper divisors (16859048530).

22478731364 is a wasteful number, since it uses less digits than its factorization.

22478731364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619682845 (or 5619682843 counting only the distinct ones).

The product of its digits is 1354752, while the sum is 47.

The spelling of 22478731364 in words is "twenty-two billion, four hundred seventy-eight million, seven hundred thirty-one thousand, three hundred sixty-four".