791300386818 has 20 divisors (see below), whose sum is σ = 1773099015270. Its totient is φ = 263766795552.

The previous prime is 791300386813. The next prime is 791300386867. The reversal of 791300386818 is 818683003197.

It can be written as a sum of positive squares in only one way, i.e., 705443768649 + 85856618169 = 839907^2 + 293013^2 .

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (791300386813) by changing a digit.

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 9 ways as a sum of consecutive naturals, for example, 2442284983 + ... + 2442285306.

Almost surely, 2^791300386818 is an apocalyptic number.

791300386818 is an abundant number, since it is smaller than the sum of its proper divisors (981798628452).

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

791300386818 is a wasteful number, since it uses less digits than its factorization.

791300386818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4884570303 (or 4884570294 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The spelling of 791300386818 in words is "seven hundred ninety-one billion, three hundred million, three hundred eighty-six thousand, eight hundred eighteen".