22810973561 has 4 divisors (see below), whose sum is σ = 23296313472. Its totient is φ = 22325633652.

The previous prime is 22810973527. The next prime is 22810973597. The reversal of 22810973561 is 16537901822.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22810973561 - 2¹⁰ = 22810972537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22810973161) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242669885 + ... + 242669978.

It is an arithmetic number, because the mean of its divisors is an integer number (5824078368).

Almost surely, 2^22810973561 is an apocalyptic number.

It is an amenable number.

22810973561 is a deficient number, since it is larger than the sum of its proper divisors (485339911).

22810973561 is an equidigital number, since it uses as much as digits as its factorization.

22810973561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485339910.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 22810973561 in words is "twenty-two billion, eight hundred ten million, nine hundred seventy-three thousand, five hundred sixty-one".