768971129513 has 2 divisors, whose sum is σ = 768971129514. Its totient is φ = 768971129512.

The previous prime is 768971129473. The next prime is 768971129573. The reversal of 768971129513 is 315921179867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 655771181209 + 113199948304 = 809797^2 + 336452^2 .

It is a cyclic number.

It is not a de Polignac number, because 768971129513 - 2¹⁴ = 768971113129 is a prime.

It is not a weakly prime, because it can be changed into another prime (768971129573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 384485564756 + 384485564757.

It is an arithmetic number, because the mean of its divisors is an integer number (384485564757).

Almost surely, 2^768971129513 is an apocalyptic number.

It is an amenable number.

768971129513 is a deficient number, since it is larger than the sum of its proper divisors (1).

768971129513 is an equidigital number, since it uses as much as digits as its factorization.

768971129513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5715360, while the sum is 59.

The spelling of 768971129513 in words is "seven hundred sixty-eight billion, nine hundred seventy-one million, one hundred twenty-nine thousand, five hundred thirteen".