6861179137 has 4 divisors (see below), whose sum is σ = 6879874816. Its totient is φ = 6842483460.

The previous prime is 6861179123. The next prime is 6861179161. The reversal of 6861179137 is 7319711686.

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 6861179137 - 2⁷ = 6861179009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6861179837) 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, 9347289 + ... + 9348022.

It is an arithmetic number, because the mean of its divisors is an integer number (1719968704).

Almost surely, 2^6861179137 is an apocalyptic number.

It is an amenable number.

6861179137 is a deficient number, since it is larger than the sum of its proper divisors (18695679).

6861179137 is a wasteful number, since it uses less digits than its factorization.

6861179137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18695678.

The product of its digits is 381024, while the sum is 49.

The square root of 6861179137 is about 82832.2348907718. The cubic root of 6861179137 is about 1900.2011917144.

The spelling of 6861179137 in words is "six billion, eight hundred sixty-one million, one hundred seventy-nine thousand, one hundred thirty-seven".