791081109041 has 2 divisors, whose sum is σ = 791081109042. Its totient is φ = 791081109040.

The previous prime is 791081109023. The next prime is 791081109061. The reversal of 791081109041 is 140901180197.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 768918534400 + 22162574641 = 876880^2 + 148871^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-791081109041 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 791081109041.

It is not a weakly prime, because it can be changed into another prime (791081109061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 395540554520 + 395540554521.

It is an arithmetic number, because the mean of its divisors is an integer number (395540554521).

Almost surely, 2^791081109041 is an apocalyptic number.

It is an amenable number.

791081109041 is a deficient number, since it is larger than the sum of its proper divisors (1).

791081109041 is an equidigital number, since it uses as much as digits as its factorization.

791081109041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 41.

The spelling of 791081109041 in words is "seven hundred ninety-one billion, eighty-one million, one hundred nine thousand, forty-one".