56751415769 has 2 divisors, whose sum is σ = 56751415770. Its totient is φ = 56751415768.

The previous prime is 56751415727. The next prime is 56751415771. The reversal of 56751415769 is 96751415765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52618854544 + 4132561225 = 229388^2 + 64285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56751415769 is a prime.

It is a super-2 number, since 2×56751415769² (a number of 22 digits) contains 22 as substring.

Together with 56751415771, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56751415969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28375707884 + 28375707885.

It is an arithmetic number, because the mean of its divisors is an integer number (28375707885).

Almost surely, 2^56751415769 is an apocalyptic number.

It is an amenable number.

56751415769 is a deficient number, since it is larger than the sum of its proper divisors (1).

56751415769 is an equidigital number, since it uses as much as digits as its factorization.

56751415769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938000, while the sum is 56.

The spelling of 56751415769 in words is "fifty-six billion, seven hundred fifty-one million, four hundred fifteen thousand, seven hundred sixty-nine".