6989116969 has 2 divisors, whose sum is σ = 6989116970. Its totient is φ = 6989116968.

The previous prime is 6989116909. The next prime is 6989116991. The reversal of 6989116969 is 9696119896.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6656601744 + 332515225 = 81588^2 + 18235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6989116969 is a prime.

It is a super-2 number, since 2×6989116969² = 97695512012727493922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6989116969.

It is not a weakly prime, because it can be changed into another prime (6989116909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3494558484 + 3494558485.

It is an arithmetic number, because the mean of its divisors is an integer number (3494558485).

Almost surely, 2^6989116969 is an apocalyptic number.

It is an amenable number.

6989116969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6989116969 is an equidigital number, since it uses as much as digits as its factorization.

6989116969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11337408, while the sum is 64.

The square root of 6989116969 is about 83600.9388045374. The cubic root of 6989116969 is about 1911.9393119316.

The spelling of 6989116969 in words is "six billion, nine hundred eighty-nine million, one hundred sixteen thousand, nine hundred sixty-nine".