793533981613 has 4 divisors (see below), whose sum is σ = 795807718300. Its totient is φ = 791260244928.

The previous prime is 793533981593. The next prime is 793533981689. The reversal of 793533981613 is 316189335397.

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 572561595684 + 220972385929 = 756678^2 + 470077^2 .

It is a cyclic number.

It is not a de Polignac number, because 793533981613 - 2¹⁷ = 793533850541 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 (793533901613) 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, 1136867820 + ... + 1136868517.

It is an arithmetic number, because the mean of its divisors is an integer number (198951929575).

Almost surely, 2^793533981613 is an apocalyptic number.

It is an amenable number.

793533981613 is a deficient number, since it is larger than the sum of its proper divisors (2273736687).

793533981613 is a wasteful number, since it uses less digits than its factorization.

793533981613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273736686.

The product of its digits is 11022480, while the sum is 58.

The spelling of 793533981613 in words is "seven hundred ninety-three billion, five hundred thirty-three million, nine hundred eighty-one thousand, six hundred thirteen".