12528670464 has 180 divisors, whose sum is σ = 37560106584. Its totient is φ = 4153669632.

The previous prime is 12528670439. The next prime is 12528670499. The reversal of 12528670464 is 46407682521.

12528670464 is a `hidden beast` number, since 1 + 2 + 528 + 67 + 0 + 4 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4083459 + ... + 4086525.

Almost surely, 2^12528670464 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 12528670464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18780053292).

12528670464 is an abundant number, since it is smaller than the sum of its proper divisors (25031436120).

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

12528670464 is an equidigital number, since it uses as much as digits as its factorization.

12528670464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3292 (or 3269 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 12528670464 in words is "twelve billion, five hundred twenty-eight million, six hundred seventy thousand, four hundred sixty-four".