115492691998 has 4 divisors (see below), whose sum is σ = 173239038000. Its totient is φ = 57746345998.

The previous prime is 115492691989. The next prime is 115492691999. The reversal of 115492691998 is 899196294511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 899196294511 = 31 ⋅29006332081.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115492691999) 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, 28873172998 + ... + 28873173001.

It is an arithmetic number, because the mean of its divisors is an integer number (43309759500).

Almost surely, 2^115492691998 is an apocalyptic number.

115492691998 is a deficient number, since it is larger than the sum of its proper divisors (57746346002).

115492691998 is an equidigital number, since it uses as much as digits as its factorization.

115492691998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57746346001.

The product of its digits is 12597120, while the sum is 64.

The spelling of 115492691998 in words is "one hundred fifteen billion, four hundred ninety-two million, six hundred ninety-one thousand, nine hundred ninety-eight".