56677077671 has 2 divisors, whose sum is σ = 56677077672. Its totient is φ = 56677077670.

The previous prime is 56677077661. The next prime is 56677077673. The reversal of 56677077671 is 17677077665.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56677077671 - 2⁶ = 56677077607 is a prime.

It is a super-2 number, since 2×56677077671² (a number of 22 digits) contains 22 as substring.

Together with 56677077673, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56677077671.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56677077673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28338538835 + 28338538836.

It is an arithmetic number, because the mean of its divisors is an integer number (28338538836).

Almost surely, 2^56677077671 is an apocalyptic number.

56677077671 is a deficient number, since it is larger than the sum of its proper divisors (1).

56677077671 is an equidigital number, since it uses as much as digits as its factorization.

56677077671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18151560, while the sum is 59.

The spelling of 56677077671 in words is "fifty-six billion, six hundred seventy-seven million, seventy-seven thousand, six hundred seventy-one".