6879125117 has 4 divisors (see below), whose sum is σ = 6918889020. Its totient is φ = 6839361216.

The previous prime is 6879125111. The next prime is 6879125173. The reversal of 6879125117 is 7115219786.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5020997881 + 1858127236 = 70859^2 + 43106^2 .

It is a cyclic number.

It is not a de Polignac number, because 6879125117 - 2⁴ = 6879125101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6879125111) 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, 19881692 + ... + 19882037.

It is an arithmetic number, because the mean of its divisors is an integer number (1729722255).

Almost surely, 2^6879125117 is an apocalyptic number.

It is an amenable number.

6879125117 is a deficient number, since it is larger than the sum of its proper divisors (39763903).

6879125117 is a wasteful number, since it uses less digits than its factorization.

6879125117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39763902.

The product of its digits is 211680, while the sum is 47.

The square root of 6879125117 is about 82940.4914200537. The cubic root of 6879125117 is about 1901.8564603753.

The spelling of 6879125117 in words is "six billion, eight hundred seventy-nine million, one hundred twenty-five thousand, one hundred seventeen".