18512483383 has 4 divisors (see below), whose sum is σ = 18512838000. Its totient is φ = 18512128768.

The previous prime is 18512483371. The next prime is 18512483419. The reversal of 18512483383 is 38338421581.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18512483383 - 2¹⁷ = 18512352311 is a prime.

It is a super-3 number, since 3×18512483383³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18512483323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81883 + ... + 209116.

It is an arithmetic number, because the mean of its divisors is an integer number (4628209500).

Almost surely, 2^18512483383 is an apocalyptic number.

18512483383 is a deficient number, since it is larger than the sum of its proper divisors (354617).

18512483383 is an equidigital number, since it uses as much as digits as its factorization.

18512483383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354616.

The product of its digits is 552960, while the sum is 46.

The spelling of 18512483383 in words is "eighteen billion, five hundred twelve million, four hundred eighty-three thousand, three hundred eighty-three".