688337742088 has 32 divisors (see below), whose sum is σ = 1293769713600. Its totient is φ = 343333092928.

The previous prime is 688337742073. The next prime is 688337742121. The reversal of 688337742088 is 880247733886.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9375570 + ... + 9448702.

It is an arithmetic number, because the mean of its divisors is an integer number (40430303550).

Almost surely, 2^688337742088 is an apocalyptic number.

It is an amenable number.

688337742088 is a deficient number, since it is larger than the sum of its proper divisors (605431971512).

688337742088 is a wasteful number, since it uses less digits than its factorization.

688337742088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75981 (or 75977 counting only the distinct ones).

The product of its (nonzero) digits is 86704128, while the sum is 64.

The spelling of 688337742088 in words is "six hundred eighty-eight billion, three hundred thirty-seven million, seven hundred forty-two thousand, eighty-eight".