56865167769629 has 2 divisors, whose sum is σ = 56865167769630. Its totient is φ = 56865167769628.

The previous prime is 56865167769601. The next prime is 56865167769643. The reversal of 56865167769629 is 92696776156865.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40577243980729 + 16287923788900 = 6370027^2 + 4035830^2 .

It is a cyclic number.

It is not a de Polignac number, because 56865167769629 - 2²⁰ = 56865166721053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56865167769929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28432583884814 + 28432583884815.

It is an arithmetic number, because the mean of its divisors is an integer number (28432583884815).

Almost surely, 2^{56865167769629} is an apocalyptic number.

It is an amenable number.

56865167769629 is a deficient number, since it is larger than the sum of its proper divisors (1).

56865167769629 is an equidigital number, since it uses as much as digits as its factorization.

56865167769629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12345177600, while the sum is 83.

The spelling of 56865167769629 in words is "fifty-six trillion, eight hundred sixty-five billion, one hundred sixty-seven million, seven hundred sixty-nine thousand, six hundred twenty-nine".