6999162409 has 2 divisors, whose sum is σ = 6999162410. Its totient is φ = 6999162408.

The previous prime is 6999162397. The next prime is 6999162421. The reversal of 6999162409 is 9042619996.

It is a balanced prime because it is at equal distance from previous prime (6999162397) and next prime (6999162421).

It can be written as a sum of positive squares in only one way, i.e., 6143424400 + 855738009 = 78380^2 + 29253^2 .

It is a cyclic number.

It is not a de Polignac number, because 6999162409 - 2⁵ = 6999162377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6999162409.

It is not a weakly prime, because it can be changed into another prime (6999162479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3499581204 + 3499581205.

It is an arithmetic number, because the mean of its divisors is an integer number (3499581205).

Almost surely, 2^6999162409 is an apocalyptic number.

It is an amenable number.

6999162409 is a deficient number, since it is larger than the sum of its proper divisors (1).

6999162409 is an equidigital number, since it uses as much as digits as its factorization.

6999162409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 55.

The square root of 6999162409 is about 83660.9969400317. The cubic root of 6999162409 is about 1912.8548819223.

The spelling of 6999162409 in words is "six billion, nine hundred ninety-nine million, one hundred sixty-two thousand, four hundred nine".