18103138098 has 32 divisors (see below), whose sum is σ = 38126480640. Its totient is φ = 5714588880.

The previous prime is 18103138087. The next prime is 18103138139. The reversal of 18103138098 is 89083130181.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 282261 + ... + 340407.

It is an arithmetic number, because the mean of its divisors is an integer number (1191452520).

Almost surely, 2^18103138098 is an apocalyptic number.

18103138098 is an abundant number, since it is smaller than the sum of its proper divisors (20023342542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18103138098 is a wasteful number, since it uses less digits than its factorization.

18103138098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60902.

The product of its (nonzero) digits is 41472, while the sum is 42.

The spelling of 18103138098 in words is "eighteen billion, one hundred three million, one hundred thirty-eight thousand, ninety-eight".