768531135870 has 96 divisors (see below), whose sum is σ = 2006044552512. Its totient is φ = 204136505856.

The previous prime is 768531135863. The next prime is 768531135871. The reversal of 768531135870 is 78531135867.

768531135870 is a `hidden beast` number, since 7 + 6 + 8 + 53 + 1 + 1 + 3 + 587 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (768531135871) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27614202 + ... + 27642018.

It is an arithmetic number, because the mean of its divisors is an integer number (20896297422).

Almost surely, 2^768531135870 is an apocalyptic number.

768531135870 is an abundant number, since it is smaller than the sum of its proper divisors (1237513416642).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

768531135870 is a wasteful number, since it uses less digits than its factorization.

768531135870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29026 (or 29023 counting only the distinct ones).

The product of its (nonzero) digits is 4233600, while the sum is 54.

It can be divided in two parts, 768531 and 135870, that added together give a square (904401 = 951²).

The spelling of 768531135870 in words is "seven hundred sixty-eight billion, five hundred thirty-one million, one hundred thirty-five thousand, eight hundred seventy".