6715439671 has 4 divisors (see below), whose sum is σ = 7110465552. Its totient is φ = 6320413792.

The previous prime is 6715439663. The next prime is 6715439683. The reversal of 6715439671 is 1769345176.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6715439671 - 2³ = 6715439663 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6715439611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197512915 + ... + 197512948.

It is an arithmetic number, because the mean of its divisors is an integer number (1777616388).

Almost surely, 2^6715439671 is an apocalyptic number.

6715439671 is a deficient number, since it is larger than the sum of its proper divisors (395025881).

6715439671 is a wasteful number, since it uses less digits than its factorization.

6715439671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395025880.

The product of its digits is 952560, while the sum is 49.

The square root of 6715439671 is about 81947.7862483179. The cubic root of 6715439671 is about 1886.6506257541.

The spelling of 6715439671 in words is "six billion, seven hundred fifteen million, four hundred thirty-nine thousand, six hundred seventy-one".