6715489681 has 8 divisors (see below), whose sum is σ = 6830935200. Its totient is φ = 6600098400.

The previous prime is 6715489667. The next prime is 6715489691. The reversal of 6715489681 is 1869845176.

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 6715489681 - 2⁹ = 6715489169 is a prime.

It is a super-2 number, since 2×6715489681² = 90195603311234963522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6715489691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 296406 + ... + 318256.

It is an arithmetic number, because the mean of its divisors is an integer number (853866900).

Almost surely, 2^6715489681 is an apocalyptic number.

It is an amenable number.

6715489681 is a deficient number, since it is larger than the sum of its proper divisors (115445519).

6715489681 is a wasteful number, since it uses less digits than its factorization.

6715489681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27119.

The product of its digits is 2903040, while the sum is 55.

The square root of 6715489681 is about 81948.0913810688. The cubic root of 6715489681 is about 1886.6553090495.

The spelling of 6715489681 in words is "six billion, seven hundred fifteen million, four hundred eighty-nine thousand, six hundred eighty-one".