56408862779 has 2 divisors, whose sum is σ = 56408862780. Its totient is φ = 56408862778.

The previous prime is 56408862733. The next prime is 56408862787. The reversal of 56408862779 is 97726880465.

56408862779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56408862779 is a prime.

It is not a weakly prime, because it can be changed into another prime (56408862379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28204431389 + 28204431390.

It is an arithmetic number, because the mean of its divisors is an integer number (28204431390).

Almost surely, 2^56408862779 is an apocalyptic number.

56408862779 is a deficient number, since it is larger than the sum of its proper divisors (1).

56408862779 is an equidigital number, since it uses as much as digits as its factorization.

56408862779 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40642560, while the sum is 62.

The spelling of 56408862779 in words is "fifty-six billion, four hundred eight million, eight hundred sixty-two thousand, seven hundred seventy-nine".