56785874069 has 2 divisors, whose sum is σ = 56785874070. Its totient is φ = 56785874068.

The previous prime is 56785874051. The next prime is 56785874087. The reversal of 56785874069 is 96047858765.

It is a balanced prime because it is at equal distance from previous prime (56785874051) and next prime (56785874087).

It can be written as a sum of positive squares in only one way, i.e., 55797526225 + 988347844 = 236215^2 + 31438^2 .

It is a cyclic number.

It is not a de Polignac number, because 56785874069 - 2⁸ = 56785873813 is a prime.

It is a super-2 number, since 2×56785874069² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56785873996 and 56785874014.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56785874669) 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, 28392937034 + 28392937035.

It is an arithmetic number, because the mean of its divisors is an integer number (28392937035).

Almost surely, 2^56785874069 is an apocalyptic number.

It is an amenable number.

56785874069 is a deficient number, since it is larger than the sum of its proper divisors (1).

56785874069 is an equidigital number, since it uses as much as digits as its factorization.

56785874069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 101606400, while the sum is 65.

The spelling of 56785874069 in words is "fifty-six billion, seven hundred eighty-five million, eight hundred seventy-four thousand, sixty-nine".