868743688 has 32 divisors (see below), whose sum is σ = 1720303200. Its totient is φ = 410147712.

The previous prime is 868743611. The next prime is 868743719. The reversal of 868743688 is 886347868.

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, 37356 + ... + 55972.

It is an arithmetic number, because the mean of its divisors is an integer number (53759475).

Almost surely, 2^868743688 is an apocalyptic number.

It is an amenable number.

868743688 is a deficient number, since it is larger than the sum of its proper divisors (851559512).

868743688 is a wasteful number, since it uses less digits than its factorization.

868743688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18949 (or 18945 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 58.

The square root of 868743688 is about 29474.4582308140. The cubic root of 868743688 is about 954.1805376862.

The spelling of 868743688 in words is "eight hundred sixty-eight million, seven hundred forty-three thousand, six hundred eighty-eight".