681194874 has 32 divisors (see below), whose sum is σ = 1388762496. Its totient is φ = 222703040.

The previous prime is 681194791. The next prime is 681194893. The reversal of 681194874 is 478491186.

681194874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 79864 + ... + 87980.

It is an arithmetic number, because the mean of its divisors is an integer number (43398828).

Almost surely, 2^681194874 is an apocalyptic number.

681194874 is an abundant number, since it is smaller than the sum of its proper divisors (707567622).

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

681194874 is a wasteful number, since it uses less digits than its factorization.

681194874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390.

The product of its digits is 387072, while the sum is 48.

The square root of 681194874 is about 26099.7102282765. The cubic root of 681194874 is about 879.8806974976.

The spelling of 681194874 in words is "six hundred eighty-one million, one hundred ninety-four thousand, eight hundred seventy-four".