56679795889 has 2 divisors, whose sum is σ = 56679795890. Its totient is φ = 56679795888.

The previous prime is 56679795847. The next prime is 56679795899. The reversal of 56679795889 is 98859797665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55021677489 + 1658118400 = 234567^2 + 40720^2 .

It is a cyclic number.

It is not a de Polignac number, because 56679795889 - 2¹⁷ = 56679664817 is a prime.

It is a super-3 number, since 3×56679795889³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56679795899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28339897944 + 28339897945.

It is an arithmetic number, because the mean of its divisors is an integer number (28339897945).

Almost surely, 2^56679795889 is an apocalyptic number.

It is an amenable number.

56679795889 is a deficient number, since it is larger than the sum of its proper divisors (1).

56679795889 is an equidigital number, since it uses as much as digits as its factorization.

56679795889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2057529600, while the sum is 79.

The spelling of 56679795889 in words is "fifty-six billion, six hundred seventy-nine million, seven hundred ninety-five thousand, eight hundred eighty-nine".