79470337196849 has 2 divisors, whose sum is σ = 79470337196850. Its totient is φ = 79470337196848.

The previous prime is 79470337196839. The next prime is 79470337196863. The reversal of 79470337196849 is 94869173307497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50300151907600 + 29170185289249 = 7092260^2 + 5400943^2 .

It is an emirp because it is prime and its reverse (94869173307497) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79470337196849 - 2¹⁶ = 79470337131313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 79470337196849.

It is not a weakly prime, because it can be changed into another prime (79470337196819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39735168598424 + 39735168598425.

It is an arithmetic number, because the mean of its divisors is an integer number (39735168598425).

Almost surely, 2^{79470337196849} is an apocalyptic number.

It is an amenable number.

79470337196849 is a deficient number, since it is larger than the sum of its proper divisors (1).

79470337196849 is an equidigital number, since it uses as much as digits as its factorization.

79470337196849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728324864, while the sum is 77.

The spelling of 79470337196849 in words is "seventy-nine trillion, four hundred seventy billion, three hundred thirty-seven million, one hundred ninety-six thousand, eight hundred forty-nine".