681716192 has 12 divisors (see below), whose sum is σ = 1342128816. Its totient is φ = 340858080.

The previous prime is 681716183. The next prime is 681716213. The reversal of 681716192 is 291617186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651784 + ... + 10651847.

It is an arithmetic number, because the mean of its divisors is an integer number (111844068).

Almost surely, 2^681716192 is an apocalyptic number.

It is an amenable number.

681716192 is a deficient number, since it is larger than the sum of its proper divisors (660412624).

681716192 is a wasteful number, since it uses less digits than its factorization.

681716192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21303641 (or 21303633 counting only the distinct ones).

The product of its digits is 36288, while the sum is 41.

The square root of 681716192 is about 26109.6953639831. The cubic root of 681716192 is about 880.1050976406.

The spelling of 681716192 in words is "six hundred eighty-one million, seven hundred sixteen thousand, one hundred ninety-two".