13335791344447 has 48 divisors (see below), whose sum is σ = 16236739117984. Its totient is φ = 10873974988800.

The previous prime is 13335791344417. The next prime is 13335791344507. The reversal of 13335791344447 is 74444319753331.

It is not a de Polignac number, because 13335791344447 - 2¹⁹ = 13335790820159 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13335791344391 and 13335791344400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13335791344417) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12543547 + ... + 13565107.

Almost surely, 2^{13335791344447} is an apocalyptic number.

13335791344447 is a deficient number, since it is larger than the sum of its proper divisors (2900947773537).

13335791344447 is a wasteful number, since it uses less digits than its factorization.

13335791344447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021832 (or 1021821 counting only the distinct ones).

The product of its digits is 45722880, while the sum is 58.

The spelling of 13335791344447 in words is "thirteen trillion, three hundred thirty-five billion, seven hundred ninety-one million, three hundred forty-four thousand, four hundred forty-seven".