9138383818 has 8 divisors (see below), whose sum is σ = 13708084320. Its totient is φ = 4569022380.

The previous prime is 9138383791. The next prime is 9138383833. The reversal of 9138383818 is 8183838319.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 718 + ... + 135193.

It is an arithmetic number, because the mean of its divisors is an integer number (1713510540).

Almost surely, 2^9138383818 is an apocalyptic number.

9138383818 is a deficient number, since it is larger than the sum of its proper divisors (4569700502).

9138383818 is a wasteful number, since it uses less digits than its factorization.

9138383818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169532.

The product of its digits is 995328, while the sum is 52.

The square root of 9138383818 is about 95594.8943092674. The cubic root of 9138383818 is about 2090.6907523492.

The spelling of 9138383818 in words is "nine billion, one hundred thirty-eight million, three hundred eighty-three thousand, eight hundred eighteen".