56778356023 has 2 divisors, whose sum is σ = 56778356024. Its totient is φ = 56778356022.

The previous prime is 56778356017. The next prime is 56778356081. The reversal of 56778356023 is 32065387765.

56778356023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56778356023 - 2⁹ = 56778355511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56778350023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28389178011 + 28389178012.

It is an arithmetic number, because the mean of its divisors is an integer number (28389178012).

Almost surely, 2^56778356023 is an apocalyptic number.

56778356023 is a deficient number, since it is larger than the sum of its proper divisors (1).

56778356023 is an equidigital number, since it uses as much as digits as its factorization.

56778356023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6350400, while the sum is 52.

The spelling of 56778356023 in words is "fifty-six billion, seven hundred seventy-eight million, three hundred fifty-six thousand, twenty-three".