1868332823 has 4 divisors (see below), whose sum is σ = 2135237520. Its totient is φ = 1601428128.

The previous prime is 1868332819. The next prime is 1868332841. The reversal of 1868332823 is 3282338681.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1868332823 - 2² = 1868332819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868332853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133452338 + ... + 133452351.

It is an arithmetic number, because the mean of its divisors is an integer number (533809380).

Almost surely, 2^1868332823 is an apocalyptic number.

1868332823 is a deficient number, since it is larger than the sum of its proper divisors (266904697).

1868332823 is an equidigital number, since it uses as much as digits as its factorization.

1868332823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266904696.

The product of its digits is 331776, while the sum is 44.

The square root of 1868332823 is about 43224.2157013866. The cubic root of 1868332823 is about 1231.6427304884.

The spelling of 1868332823 in words is "one billion, eight hundred sixty-eight million, three hundred thirty-two thousand, eight hundred twenty-three".