13472779669 has 2 divisors, whose sum is σ = 13472779670. Its totient is φ = 13472779668.

The previous prime is 13472779627. The next prime is 13472779681. The reversal of 13472779669 is 96697727431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13053062500 + 419717169 = 114250^2 + 20487^2 .

It is an emirp because it is prime and its reverse (96697727431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13472779669 - 2¹⁵ = 13472746901 is a prime.

It is a super-2 number, since 2×13472779669² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13472779169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6736389834 + 6736389835.

It is an arithmetic number, because the mean of its divisors is an integer number (6736389835).

Almost surely, 2^13472779669 is an apocalyptic number.

It is an amenable number.

13472779669 is a deficient number, since it is larger than the sum of its proper divisors (1).

13472779669 is an equidigital number, since it uses as much as digits as its factorization.

13472779669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24004512, while the sum is 61.

The spelling of 13472779669 in words is "thirteen billion, four hundred seventy-two million, seven hundred seventy-nine thousand, six hundred sixty-nine".