1816798883 has 4 divisors (see below), whose sum is σ = 1818020520. Its totient is φ = 1815577248.

The previous prime is 1816798877. The next prime is 1816798987. The reversal of 1816798883 is 3888976181.

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 1816798883 - 2¹² = 1816794787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1816798853) 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, 608585 + ... + 611562.

It is an arithmetic number, because the mean of its divisors is an integer number (454505130).

Almost surely, 2^1816798883 is an apocalyptic number.

1816798883 is a deficient number, since it is larger than the sum of its proper divisors (1221637).

1816798883 is a wasteful number, since it uses less digits than its factorization.

1816798883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221636.

The product of its digits is 4644864, while the sum is 59.

The square root of 1816798883 is about 42623.9238339222. The cubic root of 1816798883 is about 1220.2129170181.

The spelling of 1816798883 in words is "one billion, eight hundred sixteen million, seven hundred ninety-eight thousand, eight hundred eighty-three".