680869512 has 48 divisors (see below), whose sum is σ = 1850088240. Its totient is φ = 226209888.

The previous prime is 680869471. The next prime is 680869513. The reversal of 680869512 is 215968086.

It is a super-2 number, since 2×680869512² = 927166584742236288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680869513) 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, 6703 + ... + 37505.

It is an arithmetic number, because the mean of its divisors is an integer number (38543505).

Almost surely, 2^680869512 is an apocalyptic number.

It is an amenable number.

680869512 is an abundant number, since it is smaller than the sum of its proper divisors (1169218728).

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

680869512 is a wasteful number, since it uses less digits than its factorization.

680869512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31122 (or 31115 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 680869512 is about 26093.4764261108. The cubic root of 680869512 is about 879.7405881370.

The spelling of 680869512 in words is "six hundred eighty million, eight hundred sixty-nine thousand, five hundred twelve".