791108405522 has 18 divisors (see below), whose sum is σ = 1196039373237. Its totient is φ = 392452944000.

The previous prime is 791108405501. The next prime is 791108405531. The reversal of 791108405522 is 225504801197.

It can be written as a sum of positive squares in 2 ways, for example, as 786306054121 + 4802351401 = 886739^2 + 69299^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=628931.

It is a super-2 number, since 2×791108405522² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 164777522 + ... + 164782322.

Almost surely, 2^791108405522 is an apocalyptic number.

791108405522 is a deficient number, since it is larger than the sum of its proper divisors (404930967715).

791108405522 is an frugal number, since it uses more digits than its factorization.

791108405522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9866 (or 4934 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 44.

The spelling of 791108405522 in words is "seven hundred ninety-one billion, one hundred eight million, four hundred five thousand, five hundred twenty-two".