22785874945 has 32 divisors (see below), whose sum is σ = 30237193728. Its totient is φ = 16395844608.

The previous prime is 22785874939. The next prime is 22785874949. The reversal of 22785874945 is 54947858722.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 22785874945 - 2⁷ = 22785874817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22785874949) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2491972 + ... + 2501098.

It is an arithmetic number, because the mean of its divisors is an integer number (944912304).

Almost surely, 2^22785874945 is an apocalyptic number.

It is an amenable number.

22785874945 is a deficient number, since it is larger than the sum of its proper divisors (7451318783).

22785874945 is a wasteful number, since it uses less digits than its factorization.

22785874945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10449.

The product of its digits is 45158400, while the sum is 61.

The spelling of 22785874945 in words is "twenty-two billion, seven hundred eighty-five million, eight hundred seventy-four thousand, nine hundred forty-five".