688101264 has 80 divisors (see below), whose sum is σ = 2079083200. Its totient is φ = 217292544.

The previous prime is 688101263. The next prime is 688101307. The reversal of 688101264 is 462101886.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (688101263) 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, 33709 + ... + 50124.

It is an arithmetic number, because the mean of its divisors is an integer number (25988540).

Almost surely, 2^688101264 is an apocalyptic number.

It is an amenable number.

688101264 is an abundant number, since it is smaller than the sum of its proper divisors (1390981936).

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

688101264 is a wasteful number, since it uses less digits than its factorization.

688101264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83869 (or 83857 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 36.

The square root of 688101264 is about 26231.6843530872. The cubic root of 688101264 is about 882.8443023596.

The spelling of 688101264 in words is "six hundred eighty-eight million, one hundred one thousand, two hundred sixty-four".