18859705103 has 4 divisors (see below), whose sum is σ = 18870120888. Its totient is φ = 18849289320.

The previous prime is 18859705069. The next prime is 18859705147. The reversal of 18859705103 is 30150795881.

It is a happy number.

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 18859705103 - 2¹⁰ = 18859704079 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 (18859707103) 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, 5205176 + ... + 5208797.

It is an arithmetic number, because the mean of its divisors is an integer number (4717530222).

Almost surely, 2^18859705103 is an apocalyptic number.

18859705103 is a deficient number, since it is larger than the sum of its proper divisors (10415785).

18859705103 is a wasteful number, since it uses less digits than its factorization.

18859705103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10415784.

The product of its (nonzero) digits is 302400, while the sum is 47.

The spelling of 18859705103 in words is "eighteen billion, eight hundred fifty-nine million, seven hundred five thousand, one hundred three".