1838327685 has 16 divisors (see below), whose sum is σ = 3003906816. Its totient is φ = 959580608.

The previous prime is 1838327671. The next prime is 1838327717. The reversal of 1838327685 is 5867238381.

It is a cyclic number.

It is not a de Polignac number, because 1838327685 - 2¹² = 1838323589 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1303074 + ... + 1304483.

It is an arithmetic number, because the mean of its divisors is an integer number (187744176).

Almost surely, 2^1838327685 is an apocalyptic number.

1838327685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1838327685 is a deficient number, since it is larger than the sum of its proper divisors (1165579131).

1838327685 is a wasteful number, since it uses less digits than its factorization.

1838327685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2607612.

The product of its digits is 1935360, while the sum is 51.

The square root of 1838327685 is about 42875.7237256702. The cubic root of 1838327685 is about 1225.0137852121.

The spelling of 1838327685 in words is "one billion, eight hundred thirty-eight million, three hundred twenty-seven thousand, six hundred eighty-five".