13134640647 has 16 divisors (see below), whose sum is σ = 18296131680. Its totient is φ = 8370768000.

The previous prime is 13134640621. The next prime is 13134640679. The reversal of 13134640647 is 74604643131.

13134640647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13134640647 - 2⁶ = 13134640583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13134640247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 738604 + ... + 756177.

It is an arithmetic number, because the mean of its divisors is an integer number (1143508230).

Almost surely, 2^13134640647 is an apocalyptic number.

13134640647 is a deficient number, since it is larger than the sum of its proper divisors (5161491033).

13134640647 is a wasteful number, since it uses less digits than its factorization.

13134640647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494914.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 13134640647 in words is "thirteen billion, one hundred thirty-four million, six hundred forty thousand, six hundred forty-seven".