791385874843 has 4 divisors (see below), whose sum is σ = 793627761528. Its totient is φ = 789143988160.

The previous prime is 791385874837. The next prime is 791385874859. The reversal of 791385874843 is 348478583197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 348478583197 = 19 ⋅18340978063.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791385874843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791385874883) 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, 1120942813 + ... + 1120943518.

It is an arithmetic number, because the mean of its divisors is an integer number (198406940382).

Almost surely, 2^791385874843 is an apocalyptic number.

791385874843 is a deficient number, since it is larger than the sum of its proper divisors (2241886685).

791385874843 is a wasteful number, since it uses less digits than its factorization.

791385874843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241886684.

The product of its digits is 162570240, while the sum is 67.

The spelling of 791385874843 in words is "seven hundred ninety-one billion, three hundred eighty-five million, eight hundred seventy-four thousand, eight hundred forty-three".