79843339230049 has 2 divisors, whose sum is σ = 79843339230050. Its totient is φ = 79843339230048.

The previous prime is 79843339230047. The next prime is 79843339230059. The reversal of 79843339230049 is 94003293334897.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67828401640000 + 12014937590049 = 8235800^2 + 3466257^2 .

It is a cyclic number.

It is not a de Polignac number, because 79843339230049 - 2¹ = 79843339230047 is a prime.

Together with 79843339230047, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (79843339230047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39921669615024 + 39921669615025.

It is an arithmetic number, because the mean of its divisors is an integer number (39921669615025).

Almost surely, 2^{79843339230049} is an apocalyptic number.

It is an amenable number.

79843339230049 is a deficient number, since it is larger than the sum of its proper divisors (1).

79843339230049 is an equidigital number, since it uses as much as digits as its factorization.

79843339230049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105815808, while the sum is 64.

The spelling of 79843339230049 in words is "seventy-nine trillion, eight hundred forty-three billion, three hundred thirty-nine million, two hundred thirty thousand, forty-nine".