79993869041 has 2 divisors, whose sum is σ = 79993869042. Its totient is φ = 79993869040.

The previous prime is 79993869029. The next prime is 79993869047. The reversal of 79993869041 is 14096839997.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45239588416 + 34754280625 = 212696^2 + 186425^2 .

It is an emirp because it is prime and its reverse (14096839997) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79993869041 - 2¹⁸ = 79993606897 is a prime.

It is not a weakly prime, because it can be changed into another prime (79993869047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39996934520 + 39996934521.

It is an arithmetic number, because the mean of its divisors is an integer number (39996934521).

Almost surely, 2^79993869041 is an apocalyptic number.

It is an amenable number.

79993869041 is a deficient number, since it is larger than the sum of its proper divisors (1).

79993869041 is an equidigital number, since it uses as much as digits as its factorization.

79993869041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26453952, while the sum is 65.

The spelling of 79993869041 in words is "seventy-nine billion, nine hundred ninety-three million, eight hundred sixty-nine thousand, forty-one".