680378526 has 24 divisors (see below), whose sum is σ = 1478057880. Its totient is φ = 226192176.

The previous prime is 680378519. The next prime is 680378527. The reversal of 680378526 is 625873086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680378527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43045 + ... + 56688.

It is an arithmetic number, because the mean of its divisors is an integer number (61585745).

Almost surely, 2^680378526 is an apocalyptic number.

680378526 is an abundant number, since it is smaller than the sum of its proper divisors (797679354).

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

680378526 is a wasteful number, since it uses less digits than its factorization.

680378526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100120 (or 100117 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 680378526 is about 26084.0665157870. The cubic root of 680378526 is about 879.5290722382.

The spelling of 680378526 in words is "six hundred eighty million, three hundred seventy-eight thousand, five hundred twenty-six".