22513946836 has 24 divisors (see below), whose sum is σ = 39487472640. Its totient is φ = 11231838912.

The previous prime is 22513946831. The next prime is 22513946857. The reversal of 22513946836 is 63864931522.

It is a self number, because there is not a number n which added to its sum of digits gives 22513946836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22513946831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5673325 + ... + 5677291.

It is an arithmetic number, because the mean of its divisors is an integer number (1645311360).

Almost surely, 2^22513946836 is an apocalyptic number.

It is an amenable number.

22513946836 is a deficient number, since it is larger than the sum of its proper divisors (16973525804).

22513946836 is a wasteful number, since it uses less digits than its factorization.

22513946836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6783 (or 6781 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 49.

The spelling of 22513946836 in words is "twenty-two billion, five hundred thirteen million, nine hundred forty-six thousand, eight hundred thirty-six".