6681089519 has 16 divisors (see below), whose sum is σ = 7710773952. Its totient is φ = 5739579648.

The previous prime is 6681089507. The next prime is 6681089521. The reversal of 6681089519 is 9159801866.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6681089519 is a prime.

It is a super-2 number, since 2×6681089519² = 89273914321783302722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6681089579) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 290894 + ... + 313019.

It is an arithmetic number, because the mean of its divisors is an integer number (481923372).

Almost surely, 2^6681089519 is an apocalyptic number.

6681089519 is a deficient number, since it is larger than the sum of its proper divisors (1029684433).

6681089519 is a wasteful number, since it uses less digits than its factorization.

6681089519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 603986.

The product of its (nonzero) digits is 933120, while the sum is 53.

The square root of 6681089519 is about 81737.9319471688. The cubic root of 6681089519 is about 1883.4283225399.

The spelling of 6681089519 in words is "six billion, six hundred eighty-one million, eighty-nine thousand, five hundred nineteen".