18434688098 has 54 divisors (see below), whose sum is σ = 30341928267. Its totient is φ = 8398692360.

The previous prime is 18434688049. The next prime is 18434688113. The reversal of 18434688098 is 89088643481.

It can be written as a sum of positive squares in only one way, i.e., 9217344049 + 9217344049 = 96007^2 + 96007^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=96007.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 113096165 + ... + 113096327.

Almost surely, 2^18434688098 is an apocalyptic number.

18434688098 is a deficient number, since it is larger than the sum of its proper divisors (11907240169).

18434688098 is an equidigital number, since it uses as much as digits as its factorization.

18434688098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 10616832, while the sum is 59.

The spelling of 18434688098 in words is "eighteen billion, four hundred thirty-four million, six hundred eighty-eight thousand, ninety-eight".