12528613775 has 24 divisors (see below), whose sum is σ = 16386748800. Its totient is φ = 9475855200.

The previous prime is 12528613759. The next prime is 12528613789. The reversal of 12528613775 is 57731682521.

It is not a de Polignac number, because 12528613775 - 2⁴ = 12528613759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206366 + ... + 260084.

It is an arithmetic number, because the mean of its divisors is an integer number (682781200).

Almost surely, 2^12528613775 is an apocalyptic number.

12528613775 is a deficient number, since it is larger than the sum of its proper divisors (3858135025).

12528613775 is a wasteful number, since it uses less digits than its factorization.

12528613775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54239 (or 54234 counting only the distinct ones).

The product of its digits is 705600, while the sum is 47.

The spelling of 12528613775 in words is "twelve billion, five hundred twenty-eight million, six hundred thirteen thousand, seven hundred seventy-five".