56757610187779 has 2 divisors, whose sum is σ = 56757610187780. Its totient is φ = 56757610187778.

The previous prime is 56757610187741. The next prime is 56757610187783. The reversal of 56757610187779 is 97778101675765.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56757610187779 - 2²¹ = 56757608090627 is a prime.

It is not a weakly prime, because it can be changed into another prime (56757610487779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28378805093889 + 28378805093890.

It is an arithmetic number, because the mean of its divisors is an integer number (28378805093890).

Almost surely, 2^{56757610187779} is an apocalyptic number.

56757610187779 is a deficient number, since it is larger than the sum of its proper divisors (1).

56757610187779 is an equidigital number, since it uses as much as digits as its factorization.

56757610187779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1089093600, while the sum is 76.

The spelling of 56757610187779 in words is "fifty-six trillion, seven hundred fifty-seven billion, six hundred ten million, one hundred eighty-seven thousand, seven hundred seventy-nine".