22786864465 has 16 divisors (see below), whose sum is σ = 27667221840. Its totient is φ = 18014402560.

The previous prime is 22786864439. The next prime is 22786864469. The reversal of 22786864465 is 56446868722.

It can be written as a sum of positive squares in 8 ways, for example, as 22391824 + 22764472641 = 4732^2 + 150879^2 .

It is not a de Polignac number, because 22786864465 - 2¹³ = 22786856273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22786864469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 821625 + ... + 848905.

It is an arithmetic number, because the mean of its divisors is an integer number (1729201365).

Almost surely, 2^22786864465 is an apocalyptic number.

It is an amenable number.

22786864465 is a deficient number, since it is larger than the sum of its proper divisors (4880357375).

22786864465 is a wasteful number, since it uses less digits than its factorization.

22786864465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29252.

The product of its digits is 30965760, while the sum is 58.

The spelling of 22786864465 in words is "twenty-two billion, seven hundred eighty-six million, eight hundred sixty-four thousand, four hundred sixty-five".