1868000885 has 8 divisors (see below), whose sum is σ = 2373460056. Its totient is φ = 1406494720.

The previous prime is 1868000863. The next prime is 1868000887. The reversal of 1868000885 is 5880008681.

It can be written as a sum of positive squares in 4 ways, for example, as 421111441 + 1446889444 = 20521^2 + 38038^2 .

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

It is not a de Polignac number, because 1868000885 - 2²⁰ = 1866952309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868000887) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10988156 + ... + 10988325.

It is an arithmetic number, because the mean of its divisors is an integer number (296682507).

Almost surely, 2^1868000885 is an apocalyptic number.

It is an amenable number.

1868000885 is a deficient number, since it is larger than the sum of its proper divisors (505459171).

1868000885 is a wasteful number, since it uses less digits than its factorization.

1868000885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21976503.

The product of its (nonzero) digits is 122880, while the sum is 44.

The square root of 1868000885 is about 43220.3758081764. The cubic root of 1868000885 is about 1231.5697860905.

The spelling of 1868000885 in words is "one billion, eight hundred sixty-eight million, eight hundred eighty-five", and thus it is an aban number.