680831576634 has 16 divisors (see below), whose sum is σ = 1485450712800. Its totient is φ = 206312598960.

The previous prime is 680831576629. The next prime is 680831576671. The reversal of 680831576634 is 436675138086.

680831576634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×680831576634³ (a number of 36 digits) contains 333 as substring.

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, 5157814909 + ... + 5157815040.

It is an arithmetic number, because the mean of its divisors is an integer number (92840669550).

Almost surely, 2^680831576634 is an apocalyptic number.

680831576634 is an abundant number, since it is smaller than the sum of its proper divisors (804619136166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

680831576634 is a wasteful number, since it uses less digits than its factorization.

680831576634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10315629965.

The product of its (nonzero) digits is 17418240, while the sum is 57.

The spelling of 680831576634 in words is "six hundred eighty billion, eight hundred thirty-one million, five hundred seventy-six thousand, six hundred thirty-four".