13436442069 has 4 divisors (see below), whose sum is σ = 17915256096. Its totient is φ = 8957628044.

The previous prime is 13436442053. The next prime is 13436442083. The reversal of 13436442069 is 96024463431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13436442069 - 2⁴ = 13436442053 is a prime.

It is a super-2 number, since 2×13436442069² (a number of 21 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 13436442069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13436442169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239407009 + ... + 2239407014.

It is an arithmetic number, because the mean of its divisors is an integer number (4478814024).

Almost surely, 2^13436442069 is an apocalyptic number.

It is an amenable number.

13436442069 is a deficient number, since it is larger than the sum of its proper divisors (4478814027).

13436442069 is an equidigital number, since it uses as much as digits as its factorization.

13436442069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478814026.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 13436442069 in words is "thirteen billion, four hundred thirty-six million, four hundred forty-two thousand, sixty-nine".