680894511 has 16 divisors (see below), whose sum is σ = 990837120. Its totient is φ = 412477920.

The previous prime is 680894497. The next prime is 680894519. The reversal of 680894511 is 115498086.

It is not a de Polignac number, because 680894511 - 2⁵ = 680894479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680894519) 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 15 ways as a sum of consecutive naturals, for example, 119616 + ... + 125178.

It is an arithmetic number, because the mean of its divisors is an integer number (61927320).

Almost surely, 2^680894511 is an apocalyptic number.

680894511 is a deficient number, since it is larger than the sum of its proper divisors (309942609).

680894511 is a wasteful number, since it uses less digits than its factorization.

680894511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9286.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 680894511 is about 26093.9554494906. The cubic root of 680894511 is about 879.7513549411.

The spelling of 680894511 in words is "six hundred eighty million, eight hundred ninety-four thousand, five hundred eleven".