22504845761 has 2 divisors, whose sum is σ = 22504845762. Its totient is φ = 22504845760.

The previous prime is 22504845749. The next prime is 22504845809. The reversal of 22504845761 is 16754840522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21125169025 + 1379676736 = 145345^2 + 37144^2 .

It is a cyclic number.

It is not a de Polignac number, because 22504845761 - 2²⁶ = 22437736897 is a prime.

It is not a weakly prime, because it can be changed into another prime (22504845721) 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, 11252422880 + 11252422881.

It is an arithmetic number, because the mean of its divisors is an integer number (11252422881).

Almost surely, 2^22504845761 is an apocalyptic number.

It is an amenable number.

22504845761 is a deficient number, since it is larger than the sum of its proper divisors (1).

22504845761 is an equidigital number, since it uses as much as digits as its factorization.

22504845761 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 537600, while the sum is 44.

The spelling of 22504845761 in words is "twenty-two billion, five hundred four million, eight hundred forty-five thousand, seven hundred sixty-one".