12528708885 has 128 divisors (see below), whose sum is σ = 28185292800. Its totient is φ = 5128738560.

The previous prime is 12528708883. The next prime is 12528708887. The reversal of 12528708885 is 58880782521.

It is an interprime number because it is at equal distance from previous prime (12528708883) and next prime (12528708887).

It is not a de Polignac number, because 12528708885 - 2¹ = 12528708883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12528708883) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 687471 + ... + 705459.

It is an arithmetic number, because the mean of its divisors is an integer number (220197600).

Almost surely, 2^12528708885 is an apocalyptic number.

12528708885 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12528708885 is an abundant number, since it is smaller than the sum of its proper divisors (15656583915).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12528708885 is a wasteful number, since it uses less digits than its factorization.

12528708885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18088 (or 18082 counting only the distinct ones).

The product of its (nonzero) digits is 2867200, while the sum is 54.

The spelling of 12528708885 in words is "twelve billion, five hundred twenty-eight million, seven hundred eight thousand, eight hundred eighty-five".