13993424647 has 2 divisors, whose sum is σ = 13993424648. Its totient is φ = 13993424646.

The previous prime is 13993424639. The next prime is 13993424713. The reversal of 13993424647 is 74642439931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13993424647 - 2³ = 13993424639 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13993424594 and 13993424603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13993424147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6996712323 + 6996712324.

It is an arithmetic number, because the mean of its divisors is an integer number (6996712324).

Almost surely, 2^13993424647 is an apocalyptic number.

13993424647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13993424647 is an equidigital number, since it uses as much as digits as its factorization.

13993424647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3919104, while the sum is 52.

The spelling of 13993424647 in words is "thirteen billion, nine hundred ninety-three million, four hundred twenty-four thousand, six hundred forty-seven".