12528470691408 has 640 divisors, whose sum is σ = 39620824104960. Its totient is φ = 3336817213440.

The previous prime is 12528470691397. The next prime is 12528470691427. The reversal of 12528470691408 is 80419607482521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6872445985 + ... + 6872447807.

It is an arithmetic number, because the mean of its divisors is an integer number (61907537664).

Almost surely, 2^{12528470691408} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12528470691408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19810412052480).

12528470691408 is an abundant number, since it is smaller than the sum of its proper divisors (27092353413552).

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

12528470691408 is a wasteful number, since it uses less digits than its factorization.

12528470691408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2155 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 12528470691408 in words is "twelve trillion, five hundred twenty-eight billion, four hundred seventy million, six hundred ninety-one thousand, four hundred eight".