22177274459 has 2 divisors, whose sum is σ = 22177274460. Its totient is φ = 22177274458.

The previous prime is 22177274437. The next prime is 22177274491. The reversal of 22177274459 is 95447277122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22177274459 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (22177274759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11088637229 + 11088637230.

It is an arithmetic number, because the mean of its divisors is an integer number (11088637230).

Almost surely, 2^22177274459 is an apocalyptic number.

22177274459 is a deficient number, since it is larger than the sum of its proper divisors (1).

22177274459 is an equidigital number, since it uses as much as digits as its factorization.

22177274459 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1975680, while the sum is 50.

The spelling of 22177274459 in words is "twenty-two billion, one hundred seventy-seven million, two hundred seventy-four thousand, four hundred fifty-nine".