18869730733 has 8 divisors (see below), whose sum is σ = 21566405952. Its totient is φ = 16173305376.

The previous prime is 18869730731. The next prime is 18869730743. The reversal of 18869730733 is 33703796881.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18869730733 - 2¹ = 18869730731 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18869730731) 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 7 ways as a sum of consecutive naturals, for example, 145566 + ... + 242752.

It is an arithmetic number, because the mean of its divisors is an integer number (2695800744).

Almost surely, 2^18869730733 is an apocalyptic number.

It is an amenable number.

18869730733 is a deficient number, since it is larger than the sum of its proper divisors (2696675219).

18869730733 is an equidigital number, since it uses as much as digits as its factorization.

18869730733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124931.

The product of its (nonzero) digits is 4572288, while the sum is 55.

The spelling of 18869730733 in words is "eighteen billion, eight hundred sixty-nine million, seven hundred thirty thousand, seven hundred thirty-three".