680587415634 has 96 divisors (see below), whose sum is σ = 1592205834240. Its totient is φ = 189978325344.

The previous prime is 680587415633. The next prime is 680587415647. The reversal of 680587415634 is 436514785086.

680587415634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (680587415633) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23816647 + ... + 23845205.

It is an arithmetic number, because the mean of its divisors is an integer number (16585477440).

Almost surely, 2^680587415634 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 680587415634, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (796102917120).

680587415634 is an abundant number, since it is smaller than the sum of its proper divisors (911618418606).

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

680587415634 is a wasteful number, since it uses less digits than its factorization.

680587415634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28852 (or 28793 counting only the distinct ones).

The product of its (nonzero) digits is 19353600, while the sum is 57.

The spelling of 680587415634 in words is "six hundred eighty billion, five hundred eighty-seven million, four hundred fifteen thousand, six hundred thirty-four".