6611322989 has 2 divisors, whose sum is σ = 6611322990. Its totient is φ = 6611322988.

The previous prime is 6611322961. The next prime is 6611323003. The reversal of 6611322989 is 9892231166.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6611316100 + 6889 = 81310^2 + 83^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6611322989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6611322959) 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, 3305661494 + 3305661495.

It is an arithmetic number, because the mean of its divisors is an integer number (3305661495).

Almost surely, 2^6611322989 is an apocalyptic number.

It is an amenable number.

6611322989 is a deficient number, since it is larger than the sum of its proper divisors (1).

6611322989 is an equidigital number, since it uses as much as digits as its factorization.

6611322989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 6611322989 is about 81310.0423625520. The cubic root of 6611322989 is about 1876.8495398576.

The spelling of 6611322989 in words is "six billion, six hundred eleven million, three hundred twenty-two thousand, nine hundred eighty-nine".