13125075647 has 12 divisors (see below), whose sum is σ = 13590912960. Its totient is φ = 12674724480.

The previous prime is 13125075599. The next prime is 13125075679. The reversal of 13125075647 is 74657052131.

13125075647 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 13125075647 - 2⁸ = 13125075391 is a prime.

It is a super-2 number, since 2×13125075647² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13125072647) 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 11 ways as a sum of consecutive naturals, for example, 446063 + ... + 474575.

It is an arithmetic number, because the mean of its divisors is an integer number (1132576080).

Almost surely, 2^13125075647 is an apocalyptic number.

13125075647 is a deficient number, since it is larger than the sum of its proper divisors (465837313).

13125075647 is an equidigital number, since it uses as much as digits as its factorization.

13125075647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29054 (or 29023 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The spelling of 13125075647 in words is "thirteen billion, one hundred twenty-five million, seventy-five thousand, six hundred forty-seven".