13533474441 has 4 divisors (see below), whose sum is σ = 18044632592. Its totient is φ = 9022316292.

The previous prime is 13533474431. The next prime is 13533474443. The reversal of 13533474441 is 14447433531.

It is a happy number.

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 not a de Polignac number, because 13533474441 - 2⁷ = 13533474313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13533474441.

It is not an unprimeable number, because it can be changed into a prime (13533474443) 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, 2255579071 + ... + 2255579076.

It is an arithmetic number, because the mean of its divisors is an integer number (4511158148).

Almost surely, 2^13533474441 is an apocalyptic number.

It is an amenable number.

13533474441 is a deficient number, since it is larger than the sum of its proper divisors (4511158151).

13533474441 is an equidigital number, since it uses as much as digits as its factorization.

13533474441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511158150.

The product of its digits is 241920, while the sum is 39.

The spelling of 13533474441 in words is "thirteen billion, five hundred thirty-three million, four hundred seventy-four thousand, four hundred forty-one".