768868255069 has 2 divisors, whose sum is σ = 768868255070. Its totient is φ = 768868255068.

The previous prime is 768868255061. The next prime is 768868255093. The reversal of 768868255069 is 960552868867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 681967110969 + 86901144100 = 825813^2 + 294790^2 .

It is a cyclic number.

It is not a de Polignac number, because 768868255069 - 2³ = 768868255061 is a prime.

It is a super-2 number, since 2×768868255069² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 768868254989 and 768868255007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768868255061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384434127534 + 384434127535.

It is an arithmetic number, because the mean of its divisors is an integer number (384434127535).

Almost surely, 2^768868255069 is an apocalyptic number.

It is an amenable number.

768868255069 is a deficient number, since it is larger than the sum of its proper divisors (1).

768868255069 is an equidigital number, since it uses as much as digits as its factorization.

768868255069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 348364800, while the sum is 70.

The spelling of 768868255069 in words is "seven hundred sixty-eight billion, eight hundred sixty-eight million, two hundred fifty-five thousand, sixty-nine".