18350348503 has 2 divisors, whose sum is σ = 18350348504. Its totient is φ = 18350348502.

The previous prime is 18350348483. The next prime is 18350348507. The reversal of 18350348503 is 30584305381.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18350348503 - 2³³ = 9760413911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18350348507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9175174251 + 9175174252.

It is an arithmetic number, because the mean of its divisors is an integer number (9175174252).

Almost surely, 2^18350348503 is an apocalyptic number.

18350348503 is a deficient number, since it is larger than the sum of its proper divisors (1).

18350348503 is an equidigital number, since it uses as much as digits as its factorization.

18350348503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 18350348503 in words is "eighteen billion, three hundred fifty million, three hundred forty-eight thousand, five hundred three".