18375663093 has 16 divisors (see below), whose sum is σ = 24598217280. Its totient is φ = 12201871104.

The previous prime is 18375663077. The next prime is 18375663109. The reversal of 18375663093 is 39036657381.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18375663077) and next prime (18375663109).

It is not a de Polignac number, because 18375663093 - 2⁴ = 18375663077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18375663193) 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 15 ways as a sum of consecutive naturals, for example, 792655 + ... + 815507.

It is an arithmetic number, because the mean of its divisors is an integer number (1537388580).

Almost surely, 2^18375663093 is an apocalyptic number.

It is an amenable number.

18375663093 is a deficient number, since it is larger than the sum of its proper divisors (6222554187).

18375663093 is a wasteful number, since it uses less digits than its factorization.

18375663093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23908.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 18375663093 in words is "eighteen billion, three hundred seventy-five million, six hundred sixty-three thousand, ninety-three".