22559428877 has 2 divisors, whose sum is σ = 22559428878. Its totient is φ = 22559428876.

The previous prime is 22559428823. The next prime is 22559428919. The reversal of 22559428877 is 77882495522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19864365481 + 2695063396 = 140941^2 + 51914^2 .

It is a cyclic number.

It is not a de Polignac number, because 22559428877 - 2²⁶ = 22492320013 is a prime.

It is a super-2 number, since 2×22559428877² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22559428277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11279714438 + 11279714439.

It is an arithmetic number, because the mean of its divisors is an integer number (11279714439).

Almost surely, 2^22559428877 is an apocalyptic number.

It is an amenable number.

22559428877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22559428877 is an equidigital number, since it uses as much as digits as its factorization.

22559428877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22579200, while the sum is 59.

The spelling of 22559428877 in words is "twenty-two billion, five hundred fifty-nine million, four hundred twenty-eight thousand, eight hundred seventy-seven".