18382038382 has 4 divisors (see below), whose sum is σ = 27573057576. Its totient is φ = 9191019190.

The previous prime is 18382038343. The next prime is 18382038419. The reversal of 18382038382 is 28383028381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28383028381 = 19 ⋅1493843599.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 4595509594 + ... + 4595509597.

It is an arithmetic number, because the mean of its divisors is an integer number (6893264394).

Almost surely, 2^18382038382 is an apocalyptic number.

18382038382 is a deficient number, since it is larger than the sum of its proper divisors (9191019194).

18382038382 is an equidigital number, since it uses as much as digits as its factorization.

18382038382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9191019193.

The product of its (nonzero) digits is 442368, while the sum is 46.

The spelling of 18382038382 in words is "eighteen billion, three hundred eighty-two million, thirty-eight thousand, three hundred eighty-two".