768651293445131 has 4 divisors (see below), whose sum is σ = 768651868914600. Its totient is φ = 768650717975664.

The previous prime is 768651293445041. The next prime is 768651293445157. The reversal of 768651293445131 is 131544392156867.

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

It is a cyclic number.

It is not a de Polignac number, because 768651293445131 - 2¹⁸ = 768651293182987 is a prime.

It is a super-2 number, since 2×768651293445131² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (768651293445731) 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, 285726521 + ... + 288404138.

It is an arithmetic number, because the mean of its divisors is an integer number (192162967228650).

Almost surely, 2^{768651293445131} is an apocalyptic number.

768651293445131 is a deficient number, since it is larger than the sum of its proper divisors (575469469).

768651293445131 is a wasteful number, since it uses less digits than its factorization.

768651293445131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575469468.

The product of its digits is 130636800, while the sum is 65.

The spelling of 768651293445131 in words is "seven hundred sixty-eight trillion, six hundred fifty-one billion, two hundred ninety-three million, four hundred forty-five thousand, one hundred thirty-one".