115543575982 has 4 divisors (see below), whose sum is σ = 173315363976. Its totient is φ = 57771787990.

The previous prime is 115543575949. The next prime is 115543576013. The reversal of 115543575982 is 289575345511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 289575345511 = 102797 ⋅2816963.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 28885893994 + ... + 28885893997.

It is an arithmetic number, because the mean of its divisors is an integer number (43328840994).

Almost surely, 2^115543575982 is an apocalyptic number.

115543575982 is a deficient number, since it is larger than the sum of its proper divisors (57771787994).

115543575982 is an equidigital number, since it uses as much as digits as its factorization.

115543575982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57771787993.

The product of its digits is 7560000, while the sum is 55.

The spelling of 115543575982 in words is "one hundred fifteen billion, five hundred forty-three million, five hundred seventy-five thousand, nine hundred eighty-two".