768517951373 has 4 divisors (see below), whose sum is σ = 768546653148. Its totient is φ = 768489249600.

The previous prime is 768517951349. The next prime is 768517951387. The reversal of 768517951373 is 373159715867.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 172654377289 + 595863574084 = 415517^2 + 771922^2 .

It is a cyclic number.

It is not a de Polignac number, because 768517951373 - 2¹⁰ = 768517950349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768517951273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14310686 + ... + 14364287.

It is an arithmetic number, because the mean of its divisors is an integer number (192136663287).

Almost surely, 2^768517951373 is an apocalyptic number.

It is an amenable number.

768517951373 is a deficient number, since it is larger than the sum of its proper divisors (28701775).

768517951373 is a wasteful number, since it uses less digits than its factorization.

768517951373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28701774.

The product of its digits is 33339600, while the sum is 62.

The spelling of 768517951373 in words is "seven hundred sixty-eight billion, five hundred seventeen million, nine hundred fifty-one thousand, three hundred seventy-three".