79504261469 has 2 divisors, whose sum is σ = 79504261470. Its totient is φ = 79504261468.

The previous prime is 79504261433. The next prime is 79504261493. The reversal of 79504261469 is 96416240597.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41259765625 + 38244495844 = 203125^2 + 195562^2 .

It is an emirp because it is prime and its reverse (96416240597) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79504261469 - 2¹² = 79504257373 is a prime.

It is a super-2 number, since 2×79504261469² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 79504261469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79504261169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39752130734 + 39752130735.

It is an arithmetic number, because the mean of its divisors is an integer number (39752130735).

Almost surely, 2^79504261469 is an apocalyptic number.

It is an amenable number.

79504261469 is a deficient number, since it is larger than the sum of its proper divisors (1).

79504261469 is an equidigital number, since it uses as much as digits as its factorization.

79504261469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 53.

The spelling of 79504261469 in words is "seventy-nine billion, five hundred four million, two hundred sixty-one thousand, four hundred sixty-nine".