681996082 has 16 divisors (see below), whose sum is σ = 1062417312. Its totient is φ = 328093920.

The previous prime is 681996079. The next prime is 681996131. The reversal of 681996082 is 280699186.

It is a happy number.

681996082 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 7 ways as a sum of consecutive naturals, for example, 53419 + ... + 64942.

It is an arithmetic number, because the mean of its divisors is an integer number (66401082).

Almost surely, 2^681996082 is an apocalyptic number.

681996082 is a deficient number, since it is larger than the sum of its proper divisors (380421230).

681996082 is a wasteful number, since it uses less digits than its factorization.

681996082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118473.

The product of its (nonzero) digits is 373248, while the sum is 49.

The square root of 681996082 is about 26115.0547003065. The cubic root of 681996082 is about 880.2255284564.

The spelling of 681996082 in words is "six hundred eighty-one million, nine hundred ninety-six thousand, eighty-two".