56968918889 has 2 divisors, whose sum is σ = 56968918890. Its totient is φ = 56968918888.

The previous prime is 56968918871. The next prime is 56968918901. The reversal of 56968918889 is 98881986965.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51965761600 + 5003157289 = 227960^2 + 70733^2 .

It is a cyclic number.

It is not a de Polignac number, because 56968918889 - 2³² = 52673951593 is a prime.

It is not a weakly prime, because it can be changed into another prime (56968918849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28484459444 + 28484459445.

It is an arithmetic number, because the mean of its divisors is an integer number (28484459445).

Almost surely, 2^56968918889 is an apocalyptic number.

It is an amenable number.

56968918889 is a deficient number, since it is larger than the sum of its proper divisors (1).

56968918889 is an equidigital number, since it uses as much as digits as its factorization.

56968918889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 537477120, while the sum is 77.

The spelling of 56968918889 in words is "fifty-six billion, nine hundred sixty-eight million, nine hundred eighteen thousand, eight hundred eighty-nine".