22856914649 has 2 divisors, whose sum is σ = 22856914650. Its totient is φ = 22856914648.

The previous prime is 22856914609. The next prime is 22856914657. The reversal of 22856914649 is 94641965822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12352099600 + 10504815049 = 111140^2 + 102493^2 .

It is a cyclic number.

It is not a de Polignac number, because 22856914649 - 2²⁰ = 22855866073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22856914594 and 22856914603.

It is not a weakly prime, because it can be changed into another prime (22856914609) 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, 11428457324 + 11428457325.

It is an arithmetic number, because the mean of its divisors is an integer number (11428457325).

Almost surely, 2^22856914649 is an apocalyptic number.

It is an amenable number.

22856914649 is a deficient number, since it is larger than the sum of its proper divisors (1).

22856914649 is an equidigital number, since it uses as much as digits as its factorization.

22856914649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7464960, while the sum is 56.

The spelling of 22856914649 in words is "twenty-two billion, eight hundred fifty-six million, nine hundred fourteen thousand, six hundred forty-nine".