11418972889 has 2 divisors, whose sum is σ = 11418972890. Its totient is φ = 11418972888.

The previous prime is 11418972883. The next prime is 11418972931. The reversal of 11418972889 is 98827981411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9086855625 + 2332117264 = 95325^2 + 48292^2 .

It is a cyclic number.

It is not a de Polignac number, because 11418972889 - 2²⁷ = 11284755161 is a prime.

It is not a weakly prime, because it can be changed into another prime (11418972883) 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, 5709486444 + 5709486445.

It is an arithmetic number, because the mean of its divisors is an integer number (5709486445).

Almost surely, 2^11418972889 is an apocalyptic number.

It is an amenable number.

11418972889 is a deficient number, since it is larger than the sum of its proper divisors (1).

11418972889 is an equidigital number, since it uses as much as digits as its factorization.

11418972889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 58.

The spelling of 11418972889 in words is "eleven billion, four hundred eighteen million, nine hundred seventy-two thousand, eight hundred eighty-nine".