13533144434 has 4 divisors (see below), whose sum is σ = 20299716654. Its totient is φ = 6766572216.

The previous prime is 13533144419. The next prime is 13533144463. The reversal of 13533144434 is 43444133531.

13533144434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13341405025 + 191739409 = 115505^2 + 13847^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13533144394 and 13533144403.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3383286107 + ... + 3383286110.

Almost surely, 2^13533144434 is an apocalyptic number.

13533144434 is a deficient number, since it is larger than the sum of its proper divisors (6766572220).

13533144434 is an equidigital number, since it uses as much as digits as its factorization.

13533144434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766572219.

The product of its digits is 103680, while the sum is 35.

Adding to 13533144434 its reverse (43444133531), we get a palindrome (56977277965).

The spelling of 13533144434 in words is "thirteen billion, five hundred thirty-three million, one hundred forty-four thousand, four hundred thirty-four".