688751313757 has 16 divisors (see below), whose sum is σ = 747701420032. Its totient is φ = 630655683840.

The previous prime is 688751313713. The next prime is 688751313763. The reversal of 688751313757 is 757313157886.

It is not a de Polignac number, because 688751313757 - 2⁷ = 688751313629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 688751313695 and 688751313704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (688751313707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10479157 + ... + 10544677.

It is an arithmetic number, because the mean of its divisors is an integer number (46731338752).

Almost surely, 2^688751313757 is an apocalyptic number.

It is an amenable number.

688751313757 is a deficient number, since it is larger than the sum of its proper divisors (58950106275).

688751313757 is a wasteful number, since it uses less digits than its factorization.

688751313757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72028.

The product of its digits is 29635200, while the sum is 61.

The spelling of 688751313757 in words is "six hundred eighty-eight billion, seven hundred fifty-one million, three hundred thirteen thousand, seven hundred fifty-seven".