116678985889 has 2 divisors, whose sum is σ = 116678985890. Its totient is φ = 116678985888.

The previous prime is 116678985853. The next prime is 116678985911. The reversal of 116678985889 is 988589876611.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116678945889 + 40000 = 341583^2 + 200^2 .

It is a cyclic number.

It is not a de Polignac number, because 116678985889 - 2¹⁵ = 116678953121 is a prime.

It is a super-2 number, since 2×116678985889² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116678988889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58339492944 + 58339492945.

It is an arithmetic number, because the mean of its divisors is an integer number (58339492945).

Almost surely, 2^116678985889 is an apocalyptic number.

It is an amenable number.

116678985889 is a deficient number, since it is larger than the sum of its proper divisors (1).

116678985889 is an equidigital number, since it uses as much as digits as its factorization.

116678985889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 418037760, while the sum is 76.

The spelling of 116678985889 in words is "one hundred sixteen billion, six hundred seventy-eight million, nine hundred eighty-five thousand, eight hundred eighty-nine".