680894512 has 10 divisors (see below), whose sum is σ = 1319233148. Its totient is φ = 340447248.

The previous prime is 680894497. The next prime is 680894519. The reversal of 680894512 is 215498086.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (680894519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21277938 + ... + 21277969.

Almost surely, 2^680894512 is an apocalyptic number.

It is an amenable number.

680894512 is a deficient number, since it is larger than the sum of its proper divisors (638338636).

680894512 is a wasteful number, since it uses less digits than its factorization.

680894512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42555915 (or 42555909 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 680894512 is about 26093.9554686521. The cubic root of 680894512 is about 879.7513553717.

The spelling of 680894512 in words is "six hundred eighty million, eight hundred ninety-four thousand, five hundred twelve".