6949279189 has 2 divisors, whose sum is σ = 6949279190. Its totient is φ = 6949279188.

The previous prime is 6949279163. The next prime is 6949279217. The reversal of 6949279189 is 9819729496.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6238630225 + 710648964 = 78985^2 + 26658^2 .

It is a cyclic number.

It is not a de Polignac number, because 6949279189 - 2¹⁷ = 6949148117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6949279189.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6949270189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3474639594 + 3474639595.

It is an arithmetic number, because the mean of its divisors is an integer number (3474639595).

Almost surely, 2^6949279189 is an apocalyptic number.

It is an amenable number.

6949279189 is a deficient number, since it is larger than the sum of its proper divisors (1).

6949279189 is an equidigital number, since it uses as much as digits as its factorization.

6949279189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 64.

The square root of 6949279189 is about 83362.3367534764. The cubic root of 6949279189 is about 1908.2997202896.

The spelling of 6949279189 in words is "six billion, nine hundred forty-nine million, two hundred seventy-nine thousand, one hundred eighty-nine".