13285904469 has 4 divisors (see below), whose sum is σ = 17714539296. Its totient is φ = 8857269644.

The previous prime is 13285904449. The next prime is 13285904501. The reversal of 13285904469 is 96440958231.

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 13285904469 - 2²⁸ = 13017469013 is a prime.

It is a super-2 number, since 2×13285904469² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13285904449) 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, 2214317409 + ... + 2214317414.

It is an arithmetic number, because the mean of its divisors is an integer number (4428634824).

Almost surely, 2^13285904469 is an apocalyptic number.

It is an amenable number.

13285904469 is a deficient number, since it is larger than the sum of its proper divisors (4428634827).

13285904469 is an equidigital number, since it uses as much as digits as its factorization.

13285904469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4428634826.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 13285904469 in words is "thirteen billion, two hundred eighty-five million, nine hundred four thousand, four hundred sixty-nine".