6980688931 has 2 divisors, whose sum is σ = 6980688932. Its totient is φ = 6980688930.

The previous prime is 6980688917. The next prime is 6980688941. The reversal of 6980688931 is 1398860896.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6980688931 is a prime.

It is a super-2 number, since 2×6980688931² = 97460035902771845522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6980688941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3490344465 + 3490344466.

It is an arithmetic number, because the mean of its divisors is an integer number (3490344466).

Almost surely, 2^6980688931 is an apocalyptic number.

6980688931 is a deficient number, since it is larger than the sum of its proper divisors (1).

6980688931 is an equidigital number, since it uses as much as digits as its factorization.

6980688931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 58.

The square root of 6980688931 is about 83550.5172395719. The cubic root of 6980688931 is about 1911.1704795344.

The spelling of 6980688931 in words is "six billion, nine hundred eighty million, six hundred eighty-eight thousand, nine hundred thirty-one".