791185995798 has 96 divisors (see below), whose sum is σ = 1866843000288. Its totient is φ = 222558842880.

The previous prime is 791185995797. The next prime is 791185995799. The reversal of 791185995798 is 897599581197.

It is an interprime number because it is at equal distance from previous prime (791185995797) and next prime (791185995799).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791185995797) 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, 461890 + ... + 1340042.

It is an arithmetic number, because the mean of its divisors is an integer number (19446281253).

Almost surely, 2^791185995798 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791185995798, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933421500144).

791185995798 is an abundant number, since it is smaller than the sum of its proper divisors (1075657004490).

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

791185995798 is a wasteful number, since it uses less digits than its factorization.

791185995798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 878270 (or 878259 counting only the distinct ones).

The product of its digits is 514382400, while the sum is 78.

The spelling of 791185995798 in words is "seven hundred ninety-one billion, one hundred eighty-five million, nine hundred ninety-five thousand, seven hundred ninety-eight".