56710880977 has 2 divisors, whose sum is σ = 56710880978. Its totient is φ = 56710880976.

The previous prime is 56710880927. The next prime is 56710880999. The reversal of 56710880977 is 77908801765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56534097361 + 176783616 = 237769^2 + 13296^2 .

It is a cyclic number.

It is not a de Polignac number, because 56710880977 - 2¹⁵ = 56710848209 is a prime.

It is a super-2 number, since 2×56710880977² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56710880927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28355440488 + 28355440489.

It is an arithmetic number, because the mean of its divisors is an integer number (28355440489).

Almost surely, 2^56710880977 is an apocalyptic number.

It is an amenable number.

56710880977 is a deficient number, since it is larger than the sum of its proper divisors (1).

56710880977 is an equidigital number, since it uses as much as digits as its factorization.

56710880977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5927040, while the sum is 58.

The spelling of 56710880977 in words is "fifty-six billion, seven hundred ten million, eight hundred eighty thousand, nine hundred seventy-seven".