18933483389 has 8 divisors (see below), whose sum is σ = 20052786240. Its totient is φ = 17814799296.

The previous prime is 18933483343. The next prime is 18933483419. The reversal of 18933483389 is 98338433981.

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 18933483389 - 2⁸ = 18933483133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18933482389) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90929 + ... + 214790.

It is an arithmetic number, because the mean of its divisors is an integer number (2506598280).

Almost surely, 2^18933483389 is an apocalyptic number.

It is an amenable number.

18933483389 is a deficient number, since it is larger than the sum of its proper divisors (1119302851).

18933483389 is a wasteful number, since it uses less digits than its factorization.

18933483389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309379.

The product of its digits is 13436928, while the sum is 59.

The spelling of 18933483389 in words is "eighteen billion, nine hundred thirty-three million, four hundred eighty-three thousand, three hundred eighty-nine".