7993584853997 has 4 divisors (see below), whose sum is σ = 7994672571900. Its totient is φ = 7992497136096.

The previous prime is 7993584853987. The next prime is 7993584854033.

7993584853997 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6560713609321 + 1432871244676 = 2561389^2 + 1197026^2 .

It is a cyclic number.

It is not a de Polignac number, because 7993584853997 - 2²⁰ = 7993583805421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7993584853927) 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, 543847928 + ... + 543862625.

It is an arithmetic number, because the mean of its divisors is an integer number (1998668142975).

Almost surely, 2^{7993584853997} is an apocalyptic number.

It is an amenable number.

7993584853997 is a deficient number, since it is larger than the sum of its proper divisors (1087717903).

7993584853997 is a wasteful number, since it uses less digits than its factorization.

7993584853997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1087717902.

The product of its digits is 18517766400, while the sum is 86.

The spelling of 7993584853997 in words is "seven trillion, nine hundred ninety-three billion, five hundred eighty-four million, eight hundred fifty-three thousand, nine hundred ninety-seven".