680741617694 has 8 divisors (see below), whose sum is σ = 1056323199960. Its totient is φ = 328633884376.

The previous prime is 680741617643. The next prime is 680741617727. The reversal of 680741617694 is 496716147086.

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

It is a congruent number.

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, 5868462164 + ... + 5868462279.

It is an arithmetic number, because the mean of its divisors is an integer number (132040399995).

Almost surely, 2^680741617694 is an apocalyptic number.

680741617694 is a deficient number, since it is larger than the sum of its proper divisors (375581582266).

680741617694 is a wasteful number, since it uses less digits than its factorization.

680741617694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11736924474.

The product of its (nonzero) digits is 12192768, while the sum is 59.

The spelling of 680741617694 in words is "six hundred eighty billion, seven hundred forty-one million, six hundred seventeen thousand, six hundred ninety-four".