791091930026808 has 320 divisors, whose sum is σ = 2340348120000000. Its totient is φ = 248969719305216.

The previous prime is 791091930026777. The next prime is 791091930026809. The reversal of 791091930026808 is 808620039190197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791091930026809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4417222128 + ... + 4417401216.

It is an arithmetic number, because the mean of its divisors is an integer number (7313587875000).

Almost surely, 2^{791091930026808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791091930026808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170174060000000).

791091930026808 is an abundant number, since it is smaller than the sum of its proper divisors (1549256189973192).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791091930026808 is a wasteful number, since it uses less digits than its factorization.

791091930026808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180344 (or 180331 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The spelling of 791091930026808 in words is "seven hundred ninety-one trillion, ninety-one billion, nine hundred thirty million, twenty-six thousand, eight hundred eight".