768686206853 has 2 divisors, whose sum is σ = 768686206854. Its totient is φ = 768686206852.

The previous prime is 768686206837. The next prime is 768686206919. The reversal of 768686206853 is 358602686867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 743868300484 + 24817906369 = 862478^2 + 157537^2 .

It is a cyclic number.

It is not a de Polignac number, because 768686206853 - 2⁴ = 768686206837 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 768686206853.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (768686202853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384343103426 + 384343103427.

It is an arithmetic number, because the mean of its divisors is an integer number (384343103427).

Almost surely, 2^768686206853 is an apocalyptic number.

It is an amenable number.

768686206853 is a deficient number, since it is larger than the sum of its proper divisors (1).

768686206853 is an equidigital number, since it uses as much as digits as its factorization.

768686206853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139345920, while the sum is 65.

The spelling of 768686206853 in words is "seven hundred sixty-eight billion, six hundred eighty-six million, two hundred six thousand, eight hundred fifty-three".