791801772079 has 2 divisors, whose sum is σ = 791801772080. Its totient is φ = 791801772078.

The previous prime is 791801772067. The next prime is 791801772089. The reversal of 791801772079 is 970277108197.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 791801772079 - 2⁹ = 791801771567 is a prime.

It is a super-3 number, since 3×791801772079³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791801772089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395900886039 + 395900886040.

It is an arithmetic number, because the mean of its divisors is an integer number (395900886040).

Almost surely, 2^791801772079 is an apocalyptic number.

791801772079 is a deficient number, since it is larger than the sum of its proper divisors (1).

791801772079 is an equidigital number, since it uses as much as digits as its factorization.

791801772079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3111696, while the sum is 58.

The spelling of 791801772079 in words is "seven hundred ninety-one billion, eight hundred one million, seven hundred seventy-two thousand, seventy-nine".