6979570139 has 2 divisors, whose sum is σ = 6979570140. Its totient is φ = 6979570138.

The previous prime is 6979570123. The next prime is 6979570207. The reversal of 6979570139 is 9310759796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6979570139 - 2⁴ = 6979570123 is a prime.

It is not a weakly prime, because it can be changed into another prime (6979575139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3489785069 + 3489785070.

It is an arithmetic number, because the mean of its divisors is an integer number (3489785070).

Almost surely, 2^6979570139 is an apocalyptic number.

6979570139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6979570139 is an equidigital number, since it uses as much as digits as its factorization.

6979570139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3214890, while the sum is 56.

The square root of 6979570139 is about 83543.8216686309. The cubic root of 6979570139 is about 1911.0683732569.

The spelling of 6979570139 in words is "six billion, nine hundred seventy-nine million, five hundred seventy thousand, one hundred thirty-nine".