79504261169 has 2 divisors, whose sum is σ = 79504261170. Its totient is φ = 79504261168.

The previous prime is 79504261157. The next prime is 79504261171. The reversal of 79504261169 is 96116240597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60012750625 + 19491510544 = 244975^2 + 139612^2 .

It is a cyclic number.

It is not a de Polignac number, because 79504261169 - 2¹⁶ = 79504195633 is a prime.

It is a super-2 number, since 2×79504261169² (a number of 23 digits) contains 22 as substring.

Together with 79504261171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (79504261129) 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, 39752130584 + 39752130585.

It is an arithmetic number, because the mean of its divisors is an integer number (39752130585).

Almost surely, 2^79504261169 is an apocalyptic number.

It is an amenable number.

79504261169 is a deficient number, since it is larger than the sum of its proper divisors (1).

79504261169 is an equidigital number, since it uses as much as digits as its factorization.

79504261169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 816480, while the sum is 50.

The spelling of 79504261169 in words is "seventy-nine billion, five hundred four million, two hundred sixty-one thousand, one hundred sixty-nine".