680136231994 has 8 divisors (see below), whose sum is σ = 1021852499040. Its totient is φ = 339518732316.

The previous prime is 680136231989. The next prime is 680136232057. The reversal of 680136231994 is 499132631086.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274690294 + ... + 274692769.

It is an arithmetic number, because the mean of its divisors is an integer number (127731562380).

Almost surely, 2^680136231994 is an apocalyptic number.

680136231994 is a deficient number, since it is larger than the sum of its proper divisors (341716267046).

680136231994 is a wasteful number, since it uses less digits than its factorization.

680136231994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549383684.

The product of its (nonzero) digits is 1679616, while the sum is 52.

The spelling of 680136231994 in words is "six hundred eighty billion, one hundred thirty-six million, two hundred thirty-one thousand, nine hundred ninety-four".