6980902169 has 2 divisors, whose sum is σ = 6980902170. Its totient is φ = 6980902168.

The previous prime is 6980902139. The next prime is 6980902177. The reversal of 6980902169 is 9612090896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6160366144 + 820536025 = 78488^2 + 28645^2 .

It is a cyclic number.

It is not a de Polignac number, because 6980902169 - 2²⁸ = 6712466713 is a prime.

It is a super-2 number, since 2×6980902169² = 97465990186297809122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6980902139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3490451084 + 3490451085.

It is an arithmetic number, because the mean of its divisors is an integer number (3490451085).

Almost surely, 2^6980902169 is an apocalyptic number.

It is an amenable number.

6980902169 is a deficient number, since it is larger than the sum of its proper divisors (1).

6980902169 is an equidigital number, since it uses as much as digits as its factorization.

6980902169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 6980902169 is about 83551.7933320405. The cubic root of 6980902169 is about 1911.1899394103.

The spelling of 6980902169 in words is "six billion, nine hundred eighty million, nine hundred two thousand, one hundred sixty-nine".