791202121247 has 2 divisors, whose sum is σ = 791202121248. Its totient is φ = 791202121246.

The previous prime is 791202121183. The next prime is 791202121261. The reversal of 791202121247 is 742121202197.

791202121247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 791202121247 - 2⁶ = 791202121183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 791202121247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (791204121247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395601060623 + 395601060624.

It is an arithmetic number, because the mean of its divisors is an integer number (395601060624).

Almost surely, 2^791202121247 is an apocalyptic number.

791202121247 is a deficient number, since it is larger than the sum of its proper divisors (1).

791202121247 is an equidigital number, since it uses as much as digits as its factorization.

791202121247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28224, while the sum is 38.

The spelling of 791202121247 in words is "seven hundred ninety-one billion, two hundred two million, one hundred twenty-one thousand, two hundred forty-seven".