115988889511 has 16 divisors (see below), whose sum is σ = 133394116608. Its totient is φ = 99871869600.

The previous prime is 115988889493. The next prime is 115988889521.

115988889511 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 115988889511 - 2⁹ = 115988888999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115988889521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3602520 + ... + 3634573.

It is an arithmetic number, because the mean of its divisors is an integer number (8337132288).

Almost surely, 2^115988889511 is an apocalyptic number.

115988889511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

115988889511 is a deficient number, since it is larger than the sum of its proper divisors (17405227097).

115988889511 is a wasteful number, since it uses less digits than its factorization.

115988889511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237182.

The product of its digits is 8294400, while the sum is 64.

The spelling of 115988889511 in words is "one hundred fifteen billion, nine hundred eighty-eight million, eight hundred eighty-nine thousand, five hundred eleven".