13334511643 has 4 divisors (see below), whose sum is σ = 13339418560. Its totient is φ = 13329604728.

The previous prime is 13334511623. The next prime is 13334511649. The reversal of 13334511643 is 34611543331.

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

It is a cyclic number.

It is not a de Polignac number, because 13334511643 - 2²⁵ = 13300957211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13334511599 and 13334511608.

It is not an unprimeable number, because it can be changed into a prime (13334511649) 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, 2449380 + ... + 2454817.

It is an arithmetic number, because the mean of its divisors is an integer number (3334854640).

Almost surely, 2^13334511643 is an apocalyptic number.

13334511643 is a deficient number, since it is larger than the sum of its proper divisors (4906917).

13334511643 is an equidigital number, since it uses as much as digits as its factorization.

13334511643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4906916.

The product of its digits is 38880, while the sum is 34.

The spelling of 13334511643 in words is "thirteen billion, three hundred thirty-four million, five hundred eleven thousand, six hundred forty-three".