115189789873 has 4 divisors (see below), whose sum is σ = 115226512740. Its totient is φ = 115153067008.

The previous prime is 115189789837. The next prime is 115189789901. The reversal of 115189789873 is 378987981511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 114654700449 + 535089424 = 338607^2 + 23132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115189789873 is a prime.

It is a super-2 number, since 2×115189789873² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115189789799 and 115189789808.

It is not an unprimeable number, because it can be changed into a prime (115189781873) 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 in 3 ways as a sum of consecutive naturals, for example, 18356728 + ... + 18363001.

It is an arithmetic number, because the mean of its divisors is an integer number (28806628185).

Almost surely, 2^115189789873 is an apocalyptic number.

It is an amenable number.

115189789873 is a deficient number, since it is larger than the sum of its proper divisors (36722867).

115189789873 is an equidigital number, since it uses as much as digits as its factorization.

115189789873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36722866.

The product of its digits is 30481920, while the sum is 67.

The spelling of 115189789873 in words is "one hundred fifteen billion, one hundred eighty-nine million, seven hundred eighty-nine thousand, eight hundred seventy-three".