7993859801369 has 16 divisors (see below), whose sum is σ = 8697391491600. Its totient is φ = 7303340513280.

The previous prime is 7993859801359. The next prime is 7993859801381. The reversal of 7993859801369 is 9631089583997.

It can be written as a sum of positive squares in 8 ways, for example, as 714763720969 + 7279096080400 = 845437^2 + 2697980^2 .

It is a cyclic number.

It is not a de Polignac number, because 7993859801369 - 2⁴ = 7993859801353 is a prime.

It is a super-2 number, since 2×7993859801369² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7993859801369.

It is not an unprimeable number, because it can be changed into a prime (7993859801359) 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 15 ways as a sum of consecutive naturals, for example, 6798992 + ... + 7887585.

It is an arithmetic number, because the mean of its divisors is an integer number (543586968225).

Almost surely, 2^{7993859801369} is an apocalyptic number.

It is an amenable number.

7993859801369 is a deficient number, since it is larger than the sum of its proper divisors (703531690231).

7993859801369 is a wasteful number, since it uses less digits than its factorization.

7993859801369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14687020.

The product of its (nonzero) digits is 793618560, while the sum is 77.

The spelling of 7993859801369 in words is "seven trillion, nine hundred ninety-three billion, eight hundred fifty-nine million, eight hundred one thousand, three hundred sixty-nine".