791381163159 has 48 divisors (see below), whose sum is σ = 1222269564672. Its totient is φ = 491666505984.

The previous prime is 791381163143. The next prime is 791381163169. The reversal of 791381163159 is 951361183197.

791381163159 is a `hidden beast` number, since 7 + 91 + 381 + 163 + 15 + 9 = 666.

It is not a de Polignac number, because 791381163159 - 2⁴ = 791381163143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791381163169) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36054342 + ... + 36076284.

It is an arithmetic number, because the mean of its divisors is an integer number (25463949264).

Almost surely, 2^791381163159 is an apocalyptic number.

791381163159 is a deficient number, since it is larger than the sum of its proper divisors (430888401513).

791381163159 is a wasteful number, since it uses less digits than its factorization.

791381163159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24276 (or 24273 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 54.

The spelling of 791381163159 in words is "seven hundred ninety-one billion, three hundred eighty-one million, one hundred sixty-three thousand, one hundred fifty-nine".