13647750125 has 16 divisors (see below), whose sum is σ = 17044700400. Its totient is φ = 10910310400.

The previous prime is 13647750089. The next prime is 13647750163. The reversal of 13647750125 is 52105774631.

It can be written as a sum of positive squares in 8 ways, for example, as 12495215524 + 1152534601 = 111782^2 + 33949^2 .

It is not a de Polignac number, because 13647750125 - 2²⁴ = 13630972909 is a prime.

It is a super-2 number, since 2×13647750125² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137381 + ... + 214869.

It is an arithmetic number, because the mean of its divisors is an integer number (1065293775).

Almost surely, 2^13647750125 is an apocalyptic number.

It is an amenable number.

13647750125 is a deficient number, since it is larger than the sum of its proper divisors (3396950275).

13647750125 is an equidigital number, since it uses as much as digits as its factorization.

13647750125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78913 (or 78903 counting only the distinct ones).

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

The spelling of 13647750125 in words is "thirteen billion, six hundred forty-seven million, seven hundred fifty thousand, one hundred twenty-five".