56771322679 has 2 divisors, whose sum is σ = 56771322680. Its totient is φ = 56771322678.

The previous prime is 56771322667. The next prime is 56771322689. The reversal of 56771322679 is 97622317765.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56771322679 - 2⁷ = 56771322551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56771322689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28385661339 + 28385661340.

It is an arithmetic number, because the mean of its divisors is an integer number (28385661340).

Almost surely, 2^56771322679 is an apocalyptic number.

56771322679 is a deficient number, since it is larger than the sum of its proper divisors (1).

56771322679 is an equidigital number, since it uses as much as digits as its factorization.

56771322679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6667920, while the sum is 55.

The spelling of 56771322679 in words is "fifty-six billion, seven hundred seventy-one million, three hundred twenty-two thousand, six hundred seventy-nine".