13453444433 has 32 divisors (see below), whose sum is σ = 16534627200. Its totient is φ = 10777536000.

The previous prime is 13453444397. The next prime is 13453444439. The reversal of 13453444433 is 33444435431.

It is not a de Polignac number, because 13453444433 - 2¹⁴ = 13453428049 is a prime.

It is a super-2 number, since 2×13453444433² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13453444439) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 350858 + ... + 387308.

It is an arithmetic number, because the mean of its divisors is an integer number (516707100).

Almost surely, 2^13453444433 is an apocalyptic number.

13453444433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13453444433 is a deficient number, since it is larger than the sum of its proper divisors (3081182767).

13453444433 is a wasteful number, since it uses less digits than its factorization.

13453444433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36593.

The product of its digits is 414720, while the sum is 38.

Adding to 13453444433 its reverse (33444435431), we get a palindrome (46897879864).

The spelling of 13453444433 in words is "thirteen billion, four hundred fifty-three million, four hundred forty-four thousand, four hundred thirty-three".