680369919 has 8 divisors (see below), whose sum is σ = 907778352. Its totient is φ = 453270720.

The previous prime is 680369897. The next prime is 680369929. The reversal of 680369919 is 919963086.

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

It is not a de Polignac number, because 680369919 - 2¹³ = 680361727 is a prime.

It is a super-2 number, since 2×680369919² = 925806453360133122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (680369929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72124 + ... + 81009.

It is an arithmetic number, because the mean of its divisors is an integer number (113472294).

Almost surely, 2^680369919 is an apocalyptic number.

680369919 is a deficient number, since it is larger than the sum of its proper divisors (227408433).

680369919 is a wasteful number, since it uses less digits than its factorization.

680369919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154617.

The product of its (nonzero) digits is 629856, while the sum is 51.

The square root of 680369919 is about 26083.9015294875. The cubic root of 680369919 is about 879.5253634505.

The spelling of 680369919 in words is "six hundred eighty million, three hundred sixty-nine thousand, nine hundred nineteen".