7115444989 has 2 divisors, whose sum is σ = 7115444990. Its totient is φ = 7115444988.

The previous prime is 7115444983. The next prime is 7115445019. The reversal of 7115444989 is 9894445117.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5995404900 + 1120040089 = 77430^2 + 33467^2 .

It is a cyclic number.

It is not a de Polignac number, because 7115444989 - 2³ = 7115444981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7115444981) 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, 3557722494 + 3557722495.

It is an arithmetic number, because the mean of its divisors is an integer number (3557722495).

Almost surely, 2^7115444989 is an apocalyptic number.

It is an amenable number.

7115444989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7115444989 is an equidigital number, since it uses as much as digits as its factorization.

7115444989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1451520, while the sum is 52.

The square root of 7115444989 is about 84353.0970919266. The cubic root of 7115444989 is about 1923.3900060861.

The spelling of 7115444989 in words is "seven billion, one hundred fifteen million, four hundred forty-four thousand, nine hundred eighty-nine".