18445382343 has 64 divisors (see below), whose sum is σ = 30093120000. Its totient is φ = 11120820480.

The previous prime is 18445382327. The next prime is 18445382369. The reversal of 18445382343 is 34328354481.

18445382343 is a `hidden beast` number, since 1 + 84 + 4 + 538 + 2 + 34 + 3 = 666.

It is not a de Polignac number, because 18445382343 - 2⁴ = 18445382327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18445382393) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1317088 + ... + 1331018.

It is an arithmetic number, because the mean of its divisors is an integer number (470205000).

Almost surely, 2^18445382343 is an apocalyptic number.

18445382343 is a deficient number, since it is larger than the sum of its proper divisors (11647737657).

18445382343 is a wasteful number, since it uses less digits than its factorization.

18445382343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14077 (or 14071 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 45.

It can be divided in two parts, 1844538 and 2343, that added together give a square (1846881 = 1359²).

The spelling of 18445382343 in words is "eighteen billion, four hundred forty-five million, three hundred eighty-two thousand, three hundred forty-three".