791147947798 has 32 divisors (see below), whose sum is σ = 1291692316320. Its totient is φ = 361241241600.

The previous prime is 791147947789. The next prime is 791147947813. The reversal of 791147947798 is 897749741197.

It is a self number, because there is not a number n which added to its sum of digits gives 791147947798.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3186486 + ... + 3425782.

It is an arithmetic number, because the mean of its divisors is an integer number (40365384885).

Almost surely, 2^791147947798 is an apocalyptic number.

791147947798 is a deficient number, since it is larger than the sum of its proper divisors (500544368522).

791147947798 is a wasteful number, since it uses less digits than its factorization.

791147947798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240672.

The product of its digits is 224042112, while the sum is 73.

The spelling of 791147947798 in words is "seven hundred ninety-one billion, one hundred forty-seven million, nine hundred forty-seven thousand, seven hundred ninety-eight".