791587949785231 has 2 divisors, whose sum is σ = 791587949785232. Its totient is φ = 791587949785230.

The previous prime is 791587949785187. The next prime is 791587949785301. The reversal of 791587949785231 is 132587949785197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 791587949785231 - 2¹⁵ = 791587949752463 is a prime.

It is a super-2 number, since 2×791587949785231² (a number of 31 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791587949785331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395793974892615 + 395793974892616.

It is an arithmetic number, because the mean of its divisors is an integer number (395793974892616).

Almost surely, 2^{791587949785231} is an apocalyptic number.

791587949785231 is a deficient number, since it is larger than the sum of its proper divisors (1).

791587949785231 is an equidigital number, since it uses as much as digits as its factorization.

791587949785231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9601804800, while the sum is 85.

The spelling of 791587949785231 in words is "seven hundred ninety-one trillion, five hundred eighty-seven billion, nine hundred forty-nine million, seven hundred eighty-five thousand, two hundred thirty-one".