680992911 has 6 divisors (see below), whose sum is σ = 983656440. Its totient is φ = 453995268.

The previous prime is 680992909. The next prime is 680992933. The reversal of 680992911 is 119299086.

It is not a de Polignac number, because 680992911 - 2¹ = 680992909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680992951) 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 5 ways as a sum of consecutive naturals, for example, 37832931 + ... + 37832948.

It is an arithmetic number, because the mean of its divisors is an integer number (163942740).

Almost surely, 2^680992911 is an apocalyptic number.

680992911 is a deficient number, since it is larger than the sum of its proper divisors (302663529).

680992911 is a wasteful number, since it uses less digits than its factorization.

680992911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75665885 (or 75665882 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 45.

The square root of 680992911 is about 26095.8408755112. The cubic root of 680992911 is about 879.7937322169.

The spelling of 680992911 in words is "six hundred eighty million, nine hundred ninety-two thousand, nine hundred eleven".