22540879177 has 2 divisors, whose sum is σ = 22540879178. Its totient is φ = 22540879176.

The previous prime is 22540879147. The next prime is 22540879183. The reversal of 22540879177 is 77197804522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21031090441 + 1509788736 = 145021^2 + 38856^2 .

It is a cyclic number.

It is not a de Polignac number, because 22540879177 - 2¹¹ = 22540877129 is a prime.

It is a super-2 number, since 2×22540879177² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (22540879147) 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 as a sum of consecutive naturals, namely, 11270439588 + 11270439589.

It is an arithmetic number, because the mean of its divisors is an integer number (11270439589).

Almost surely, 2^22540879177 is an apocalyptic number.

It is an amenable number.

22540879177 is a deficient number, since it is larger than the sum of its proper divisors (1).

22540879177 is an equidigital number, since it uses as much as digits as its factorization.

22540879177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1975680, while the sum is 52.

The spelling of 22540879177 in words is "twenty-two billion, five hundred forty million, eight hundred seventy-nine thousand, one hundred seventy-seven".