6715089509 has 4 divisors (see below), whose sum is σ = 6715629216. Its totient is φ = 6714549804.

The previous prime is 6715089503. The next prime is 6715089527. The reversal of 6715089509 is 9059805176.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6715089509 - 2⁸ = 6715089253 is a prime.

It is a super-2 number, since 2×6715089509² = 90184854227763722162, 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 (6715089503) 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, 250739 + ... + 276224.

It is an arithmetic number, because the mean of its divisors is an integer number (1678907304).

Almost surely, 2^6715089509 is an apocalyptic number.

It is an amenable number.

6715089509 is a deficient number, since it is larger than the sum of its proper divisors (539707).

6715089509 is a wasteful number, since it uses less digits than its factorization.

6715089509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539706.

The product of its (nonzero) digits is 680400, while the sum is 50.

The square root of 6715089509 is about 81945.6497259006. The cubic root of 6715089509 is about 1886.6178334193.

The spelling of 6715089509 in words is "six billion, seven hundred fifteen million, eighty-nine thousand, five hundred nine".