6979144217 has 8 divisors (see below), whose sum is σ = 7017774624. Its totient is φ = 6940539648.

The previous prime is 6979144187. The next prime is 6979144223. The reversal of 6979144217 is 7124419796.

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 6979144217 - 2⁶ = 6979144153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6979144267) 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, 822398 + ... + 830840.

It is an arithmetic number, because the mean of its divisors is an integer number (877221828).

Almost surely, 2^6979144217 is an apocalyptic number.

It is an amenable number.

6979144217 is a deficient number, since it is larger than the sum of its proper divisors (38630407).

6979144217 is a wasteful number, since it uses less digits than its factorization.

6979144217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12919.

The product of its digits is 762048, while the sum is 50.

The square root of 6979144217 is about 83541.2725363937. The cubic root of 6979144217 is about 1911.0294987224.

The spelling of 6979144217 in words is "six billion, nine hundred seventy-nine million, one hundred forty-four thousand, two hundred seventeen".