791544445213 has 2 divisors, whose sum is σ = 791544445214. Its totient is φ = 791544445212.

The previous prime is 791544445177. The next prime is 791544445243. The reversal of 791544445213 is 312544445197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 644685343929 + 146859101284 = 802923^2 + 383222^2 .

It is an emirp because it is prime and its reverse (312544445197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 791544445213 - 2⁹ = 791544444701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791544445243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395772222606 + 395772222607.

It is an arithmetic number, because the mean of its divisors is an integer number (395772222607).

Almost surely, 2^791544445213 is an apocalyptic number.

It is an amenable number.

791544445213 is a deficient number, since it is larger than the sum of its proper divisors (1).

791544445213 is an equidigital number, since it uses as much as digits as its factorization.

791544445213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 49.

The spelling of 791544445213 in words is "seven hundred ninety-one billion, five hundred forty-four million, four hundred forty-five thousand, two hundred thirteen".