56991668594983 has 2 divisors, whose sum is σ = 56991668594984. Its totient is φ = 56991668594982.

The previous prime is 56991668594941. The next prime is 56991668595007. The reversal of 56991668594983 is 38949586619965.

56991668594983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56991668594983 - 2¹⁷ = 56991668463911 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 56991668594894 and 56991668594903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56991668594683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28495834297491 + 28495834297492.

It is an arithmetic number, because the mean of its divisors is an integer number (28495834297492).

Almost surely, 2^{56991668594983} is an apocalyptic number.

56991668594983 is a deficient number, since it is larger than the sum of its proper divisors (1).

56991668594983 is an equidigital number, since it uses as much as digits as its factorization.

56991668594983 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27209779200, while the sum is 88.

The spelling of 56991668594983 in words is "fifty-six trillion, nine hundred ninety-one billion, six hundred sixty-eight million, five hundred ninety-four thousand, nine hundred eighty-three".