18435748032193 has 4 divisors (see below), whose sum is σ = 18657865478448. Its totient is φ = 18213630585940.

The previous prime is 18435748032161. The next prime is 18435748032241. The reversal of 18435748032193 is 39123084753481.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18435748032193 - 2⁵ = 18435748032161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18435748032103) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 111058723003 + ... + 111058723168.

It is an arithmetic number, because the mean of its divisors is an integer number (4664466369612).

Almost surely, 2^{18435748032193} is an apocalyptic number.

It is an amenable number.

18435748032193 is a deficient number, since it is larger than the sum of its proper divisors (222117446255).

18435748032193 is an equidigital number, since it uses as much as digits as its factorization.

18435748032193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222117446254.

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 18435748032193 in words is "eighteen trillion, four hundred thirty-five billion, seven hundred forty-eight million, thirty-two thousand, one hundred ninety-three".