791053817993 has 8 divisors (see below), whose sum is σ = 845270676360. Its totient is φ = 737690768640.

The previous prime is 791053817951. The next prime is 791053818011. The reversal of 791053817993 is 399718350197.

791053817993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 125806414864 + 665247403129 = 354692^2 + 815627^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791053817993 is a prime.

It is a super-2 number, since 2×791053817993² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (791053817923) 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, 213450338 + ... + 213454043.

It is an arithmetic number, because the mean of its divisors is an integer number (105658834545).

Almost surely, 2^791053817993 is an apocalyptic number.

It is an amenable number.

791053817993 is a deficient number, since it is larger than the sum of its proper divisors (54216858367).

791053817993 is a wasteful number, since it uses less digits than its factorization.

791053817993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426904507.

The product of its (nonzero) digits is 12859560, while the sum is 62.

The spelling of 791053817993 in words is "seven hundred ninety-one billion, fifty-three million, eight hundred seventeen thousand, nine hundred ninety-three".