7982842005 has 20 divisors (see below), whose sum is σ = 14309984172. Its totient is φ = 4257515520.

The previous prime is 7982841991. The next prime is 7982842067. The reversal of 7982842005 is 5002482897.

It can be written as a sum of positive squares in 2 ways, for example, as 3924897201 + 4057944804 = 62649^2 + 63702^2 .

It is not a de Polignac number, because 7982842005 - 2⁴ = 7982841989 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9854956 + ... + 9855765.

Almost surely, 2^7982842005 is an apocalyptic number.

It is an amenable number.

7982842005 is a deficient number, since it is larger than the sum of its proper divisors (6327142167).

7982842005 is a wasteful number, since it uses less digits than its factorization.

7982842005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19710738 (or 19710729 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 7982842005 is about 89346.7515078192. The cubic root of 7982842005 is about 1998.5691436525.

The spelling of 7982842005 in words is "seven billion, nine hundred eighty-two million, eight hundred forty-two thousand, five".