13634323449 has 12 divisors (see below), whose sum is σ = 19186251696. Its totient is φ = 8611150968.

The previous prime is 13634323441. The next prime is 13634323457. The reversal of 13634323449 is 94432343631.

It is an interprime number because it is at equal distance from previous prime (13634323441) and next prime (13634323457).

It is not a de Polignac number, because 13634323449 - 2³ = 13634323441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13634323449.

It is not an unprimeable number, because it can be changed into a prime (13634323441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6293619 + ... + 6295784.

It is an arithmetic number, because the mean of its divisors is an integer number (1598854308).

Almost surely, 2^13634323449 is an apocalyptic number.

13634323449 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13634323449 is a deficient number, since it is larger than the sum of its proper divisors (5551928247).

13634323449 is a wasteful number, since it uses less digits than its factorization.

13634323449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12589444 (or 12589425 counting only the distinct ones).

The product of its digits is 559872, while the sum is 42.

The spelling of 13634323449 in words is "thirteen billion, six hundred thirty-four million, three hundred twenty-three thousand, four hundred forty-nine".