680131919 has 8 divisors (see below), whose sum is σ = 712217472. Its totient is φ = 648255960.

The previous prime is 680131913. The next prime is 680131927. The reversal of 680131919 is 919131086.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 680131919 - 2⁸ = 680131663 is a prime.

It is a super-2 number, since 2×680131919² = 925158854485245122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680131913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45737 + ... + 58754.

It is an arithmetic number, because the mean of its divisors is an integer number (89027184).

Almost surely, 2^680131919 is an apocalyptic number.

680131919 is a deficient number, since it is larger than the sum of its proper divisors (32085553).

680131919 is a wasteful number, since it uses less digits than its factorization.

680131919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104797.

The product of its (nonzero) digits is 11664, while the sum is 38.

The square root of 680131919 is about 26079.3389295051. The cubic root of 680131919 is about 879.4227959875.

The spelling of 680131919 in words is "six hundred eighty million, one hundred thirty-one thousand, nine hundred nineteen".