791999999197 has 8 divisors (see below), whose sum is σ = 864605482272. Its totient is φ = 719495430000.

The previous prime is 791999999159. The next prime is 791999999221.

It is a happy number.

791999999197 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 791999999197 - 2⁷ = 791999999069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791999999137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25212054 + ... + 25243447.

It is an arithmetic number, because the mean of its divisors is an integer number (108075685284).

Almost surely, 2^791999999197 is an apocalyptic number.

It is an amenable number.

791999999197 is a deficient number, since it is larger than the sum of its proper divisors (72605483075).

791999999197 is a wasteful number, since it uses less digits than its factorization.

791999999197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50456939.

The product of its digits is 2109289329, while the sum is 88.

The spelling of 791999999197 in words is "seven hundred ninety-one billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, one hundred ninety-seven".