681495196 has 12 divisors (see below), whose sum is σ = 1231088320. Its totient is φ = 329755680.

The previous prime is 681495187. The next prime is 681495197. The reversal of 681495196 is 691594186.

681495196 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681495197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2747841 + ... + 2748088.

Almost surely, 2^681495196 is an apocalyptic number.

It is an amenable number.

681495196 is a deficient number, since it is larger than the sum of its proper divisors (549593124).

681495196 is a wasteful number, since it uses less digits than its factorization.

681495196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495964 (or 5495962 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 681495196 is about 26105.4629531828. The cubic root of 681495196 is about 880.0099843908.

The spelling of 681495196 in words is "six hundred eighty-one million, four hundred ninety-five thousand, one hundred ninety-six".