22738674865 has 4 divisors (see below), whose sum is σ = 27286409844. Its totient is φ = 18190939888.

The previous prime is 22738674863. The next prime is 22738674923. The reversal of 22738674865 is 56847683722.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5104959601 + 17633715264 = 71449^2 + 132792^2 .

It is a cyclic number.

It is not a de Polignac number, because 22738674865 - 2¹ = 22738674863 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22738674863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273867482 + ... + 2273867491.

It is an arithmetic number, because the mean of its divisors is an integer number (6821602461).

Almost surely, 2^22738674865 is an apocalyptic number.

It is an amenable number.

22738674865 is a deficient number, since it is larger than the sum of its proper divisors (4547734979).

22738674865 is an equidigital number, since it uses as much as digits as its factorization.

22738674865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547734978.

The product of its digits is 27095040, while the sum is 58.

The spelling of 22738674865 in words is "twenty-two billion, seven hundred thirty-eight million, six hundred seventy-four thousand, eight hundred sixty-five".