22856914657 has 2 divisors, whose sum is σ = 22856914658. Its totient is φ = 22856914656.

The previous prime is 22856914649. The next prime is 22856914669. The reversal of 22856914657 is 75641965822.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17209241856 + 5647672801 = 131184^2 + 75151^2 .

It is a cyclic number.

It is not a de Polignac number, because 22856914657 - 2³ = 22856914649 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22856914598 and 22856914607.

It is not a weakly prime, because it can be changed into another prime (22856914357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11428457328 + 11428457329.

It is an arithmetic number, because the mean of its divisors is an integer number (11428457329).

Almost surely, 2^22856914657 is an apocalyptic number.

It is an amenable number.

22856914657 is a deficient number, since it is larger than the sum of its proper divisors (1).

22856914657 is an equidigital number, since it uses as much as digits as its factorization.

22856914657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 55.

The spelling of 22856914657 in words is "twenty-two billion, eight hundred fifty-six million, nine hundred fourteen thousand, six hundred fifty-seven".