1983331422863 has 48 divisors (see below), whose sum is σ = 2405687776128. Its totient is φ = 1628948160000.

The previous prime is 1983331422857. The next prime is 1983331422889. The reversal of 1983331422863 is 3682241333891.

It is a Cunningham number, because it is equal to 1408308²-1.

It is not a de Polignac number, because 1983331422863 - 2⁴ = 1983331422847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983331422893) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 85895306 + ... + 85918392.

It is an arithmetic number, because the mean of its divisors is an integer number (50118495336).

Almost surely, 2^{1983331422863} is an apocalyptic number.

1983331422863 is a deficient number, since it is larger than the sum of its proper divisors (422356353265).

1983331422863 is a wasteful number, since it uses less digits than its factorization.

1983331422863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23904 (or 23897 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 53.

The spelling of 1983331422863 in words is "one trillion, nine hundred eighty-three billion, three hundred thirty-one million, four hundred twenty-two thousand, eight hundred sixty-three".