1982808013679 has 8 divisors (see below), whose sum is σ = 2069055899520. Its totient is φ = 1896563364696.

The previous prime is 1982808013663. The next prime is 1982808013717. The reversal of 1982808013679 is 9763108082891.

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

It is a cyclic number.

It is not a de Polignac number, because 1982808013679 - 2⁴ = 1982808013663 is a prime.

It is a super-2 number, since 2×1982808013679² (a number of 25 digits) contains 22 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 (1982808013649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 486752 + ... + 2050010.

It is an arithmetic number, because the mean of its divisors is an integer number (258631987440).

Almost surely, 2^{1982808013679} is an apocalyptic number.

1982808013679 is a deficient number, since it is larger than the sum of its proper divisors (86247885841).

1982808013679 is a wasteful number, since it uses less digits than its factorization.

1982808013679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1618429.

The product of its (nonzero) digits is 10450944, while the sum is 62.

The spelling of 1982808013679 in words is "one trillion, nine hundred eighty-two billion, eight hundred eight million, thirteen thousand, six hundred seventy-nine".