680012892 has 36 divisors (see below), whose sum is σ = 1851147480. Its totient is φ = 209234592.

The previous prime is 680012891. The next prime is 680012897. The reversal of 680012892 is 298210086.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680012891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 726042 + ... + 726977.

Almost surely, 2^680012892 is an apocalyptic number.

It is an amenable number.

680012892 is an abundant number, since it is smaller than the sum of its proper divisors (1171134588).

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

680012892 is a wasteful number, since it uses less digits than its factorization.

680012892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453042 (or 1453037 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 680012892 is about 26077.0568124549. The cubic root of 680012892 is about 879.3714916444.

The spelling of 680012892 in words is "six hundred eighty million, twelve thousand, eight hundred ninety-two".