18497338103 has 4 divisors (see below), whose sum is σ = 18512463888. Its totient is φ = 18482212320.

The previous prime is 18497338081. The next prime is 18497338127. The reversal of 18497338103 is 30183379481.

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

It is a cyclic number.

It is not a de Polignac number, because 18497338103 - 2¹⁸ = 18497075959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18497331103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7561058 + ... + 7563503.

It is an arithmetic number, because the mean of its divisors is an integer number (4628115972).

Almost surely, 2^18497338103 is an apocalyptic number.

18497338103 is a deficient number, since it is larger than the sum of its proper divisors (15125785).

18497338103 is a wasteful number, since it uses less digits than its factorization.

18497338103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15125784.

The product of its (nonzero) digits is 435456, while the sum is 47.

The spelling of 18497338103 in words is "eighteen billion, four hundred ninety-seven million, three hundred thirty-eight thousand, one hundred three".