688131319375 has 10 divisors (see below), whose sum is σ = 859888897472. Its totient is φ = 550505055000.

The previous prime is 688131319367. The next prime is 688131319387. The reversal of 688131319375 is 573913131886.

688131319375 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 688131319375 - 2³ = 688131319367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 550504431 + ... + 550505680.

Almost surely, 2^688131319375 is an apocalyptic number.

688131319375 is a deficient number, since it is larger than the sum of its proper divisors (171757578097).

688131319375 is an equidigital number, since it uses as much as digits as its factorization.

688131319375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101010131 (or 1101010116 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The spelling of 688131319375 in words is "six hundred eighty-eight billion, one hundred thirty-one million, three hundred nineteen thousand, three hundred seventy-five".