688820882074 has 32 divisors (see below), whose sum is σ = 1149063552000. Its totient is φ = 307538985600.

The previous prime is 688820882063. The next prime is 688820882081. The reversal of 688820882074 is 470288028886.

It is a Smith number, since the sum of its digits (61) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1862427 + ... + 2201425.

It is an arithmetic number, because the mean of its divisors is an integer number (35908236000).

Almost surely, 2^688820882074 is an apocalyptic number.

688820882074 is a deficient number, since it is larger than the sum of its proper divisors (460242669926).

688820882074 is a wasteful number, since it uses less digits than its factorization.

688820882074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341566.

The product of its (nonzero) digits is 22020096, while the sum is 61.

The spelling of 688820882074 in words is "six hundred eighty-eight billion, eight hundred twenty million, eight hundred eighty-two thousand, seventy-four".