13405032869 has 2 divisors, whose sum is σ = 13405032870. Its totient is φ = 13405032868.

The previous prime is 13405032859. The next prime is 13405032887. The reversal of 13405032869 is 96823050431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12256704100 + 1148328769 = 110710^2 + 33887^2 .

It is an emirp because it is prime and its reverse (96823050431) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13405032869 is a prime.

It is a super-2 number, since 2×13405032869² (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 (13405032829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702516434 + 6702516435.

It is an arithmetic number, because the mean of its divisors is an integer number (6702516435).

Almost surely, 2^13405032869 is an apocalyptic number.

It is an amenable number.

13405032869 is a deficient number, since it is larger than the sum of its proper divisors (1).

13405032869 is an equidigital number, since it uses as much as digits as its factorization.

13405032869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 41.

The spelling of 13405032869 in words is "thirteen billion, four hundred five million, thirty-two thousand, eight hundred sixty-nine".