22372978688 has 26 divisors (see below), whose sum is σ = 44740503414. Its totient is φ = 11186487296.

The previous prime is 22372978651. The next prime is 22372978717. The reversal of 22372978688 is 88687927322.

It can be written as a sum of positive squares in only one way, i.e., 21536149504 + 836829184 = 146752^2 + 28928^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 22372978688.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2726981 + ... + 2735172.

Almost surely, 2^22372978688 is an apocalyptic number.

It is an amenable number.

22372978688 is a deficient number, since it is larger than the sum of its proper divisors (22367524726).

22372978688 is an frugal number, since it uses more digits than its factorization.

22372978688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462177 (or 5462155 counting only the distinct ones).

The product of its digits is 32514048, while the sum is 62.

The spelling of 22372978688 in words is "twenty-two billion, three hundred seventy-two million, nine hundred seventy-eight thousand, six hundred eighty-eight".