12528833871 has 24 divisors (see below), whose sum is σ = 17645475504. Its totient is φ = 7906273920.

The previous prime is 12528833869. The next prime is 12528833873. The reversal of 12528833871 is 17833882521.

It is an interprime number because it is at equal distance from previous prime (12528833869) and next prime (12528833873).

It is not a de Polignac number, because 12528833871 - 2¹ = 12528833869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12528833871.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528833873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1491435 + ... + 1499811.

It is an arithmetic number, because the mean of its divisors is an integer number (735228146).

Almost surely, 2^12528833871 is an apocalyptic number.

12528833871 is a deficient number, since it is larger than the sum of its proper divisors (5116641633).

12528833871 is a wasteful number, since it uses less digits than its factorization.

12528833871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9799 (or 9780 counting only the distinct ones).

The product of its digits is 645120, while the sum is 48.

The spelling of 12528833871 in words is "twelve billion, five hundred twenty-eight million, eight hundred thirty-three thousand, eight hundred seventy-one".