22731328686 has 16 divisors (see below), whose sum is σ = 49595626368. Its totient is φ = 6888281400.

The previous prime is 22731328603. The next prime is 22731328687. The reversal of 22731328686 is 68682313722.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22731328687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172206970 + ... + 172207101.

It is an arithmetic number, because the mean of its divisors is an integer number (3099726648).

Almost surely, 2^22731328686 is an apocalyptic number.

22731328686 is an abundant number, since it is smaller than the sum of its proper divisors (26864297682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22731328686 is a wasteful number, since it uses less digits than its factorization.

22731328686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344414087.

The product of its digits is 1161216, while the sum is 48.

The spelling of 22731328686 in words is "twenty-two billion, seven hundred thirty-one million, three hundred twenty-eight thousand, six hundred eighty-six".