22355409877 has 2 divisors, whose sum is σ = 22355409878. Its totient is φ = 22355409876.

The previous prime is 22355409863. The next prime is 22355409883. The reversal of 22355409877 is 77890455322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21417151716 + 938258161 = 146346^2 + 30631^2 .

It is a cyclic number.

It is not a de Polignac number, because 22355409877 - 2⁷ = 22355409749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22355409847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11177704938 + 11177704939.

It is an arithmetic number, because the mean of its divisors is an integer number (11177704939).

Almost surely, 2^22355409877 is an apocalyptic number.

It is an amenable number.

22355409877 is a deficient number, since it is larger than the sum of its proper divisors (1).

22355409877 is an equidigital number, since it uses as much as digits as its factorization.

22355409877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4233600, while the sum is 52.

The spelling of 22355409877 in words is "twenty-two billion, three hundred fifty-five million, four hundred nine thousand, eight hundred seventy-seven".