18488658103 has 2 divisors, whose sum is σ = 18488658104. Its totient is φ = 18488658102.

The previous prime is 18488658037. The next prime is 18488658109. The reversal of 18488658103 is 30185688481.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18488658103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18488658109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9244329051 + 9244329052.

It is an arithmetic number, because the mean of its divisors is an integer number (9244329052).

Almost surely, 2^18488658103 is an apocalyptic number.

18488658103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18488658103 is an equidigital number, since it uses as much as digits as its factorization.

18488658103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1474560, while the sum is 52.

The spelling of 18488658103 in words is "eighteen billion, four hundred eighty-eight million, six hundred fifty-eight thousand, one hundred three".