22847692561 has 4 divisors (see below), whose sum is σ = 22903555300. Its totient is φ = 22791829824.

The previous prime is 22847692547. The next prime is 22847692591. The reversal of 22847692561 is 16529674822.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13670052561 + 9177640000 = 116919^2 + 95800^2 .

It is a cyclic number.

It is not a de Polignac number, because 22847692561 - 2⁵ = 22847692529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22847692499 and 22847692508.

It is not an unprimeable number, because it can be changed into a prime (22847692501) 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, 27930756 + ... + 27931573.

It is an arithmetic number, because the mean of its divisors is an integer number (5725888825).

Almost surely, 2^22847692561 is an apocalyptic number.

It is an amenable number.

22847692561 is a deficient number, since it is larger than the sum of its proper divisors (55862739).

22847692561 is an equidigital number, since it uses as much as digits as its factorization.

22847692561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55862738.

The product of its digits is 2903040, while the sum is 52.

The spelling of 22847692561 in words is "twenty-two billion, eight hundred forty-seven million, six hundred ninety-two thousand, five hundred sixty-one".