1982279328823 has 4 divisors (see below), whose sum is σ = 1982789047120. Its totient is φ = 1981769610528.

The previous prime is 1982279328781. The next prime is 1982279328839. The reversal of 1982279328823 is 3288239722891.

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 1982279328823 - 2²⁵ = 1982245774391 is a prime.

It is a super-3 number, since 3×1982279328823³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1982279028823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254853315 + ... + 254861092.

It is an arithmetic number, because the mean of its divisors is an integer number (495697261780).

Almost surely, 2^{1982279328823} is an apocalyptic number.

1982279328823 is a deficient number, since it is larger than the sum of its proper divisors (509718297).

1982279328823 is an equidigital number, since it uses as much as digits as its factorization.

1982279328823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 509718296.

The product of its digits is 41803776, while the sum is 64.

The spelling of 1982279328823 in words is "one trillion, nine hundred eighty-two billion, two hundred seventy-nine million, three hundred twenty-eight thousand, eight hundred twenty-three".