13399547647 has 4 divisors (see below), whose sum is σ = 13400139880. Its totient is φ = 13398955416.

The previous prime is 13399547599. The next prime is 13399547671. The reversal of 13399547647 is 74674599331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74674599331 = 41 ⋅1821331691.

It is a cyclic number.

It is not a de Polignac number, because 13399547647 - 2²³ = 13391159039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13399547591 and 13399547600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13399547677) 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, 260772 + ... + 307897.

It is an arithmetic number, because the mean of its divisors is an integer number (3350034970).

Almost surely, 2^13399547647 is an apocalyptic number.

13399547647 is a deficient number, since it is larger than the sum of its proper divisors (592233).

13399547647 is an equidigital number, since it uses as much as digits as its factorization.

13399547647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592232.

The product of its digits is 17146080, while the sum is 58.

The spelling of 13399547647 in words is "thirteen billion, three hundred ninety-nine million, five hundred forty-seven thousand, six hundred forty-seven".