12747504128 has 160 divisors (see below), whose sum is σ = 27806613120. Its totient is φ = 5815664640.

The previous prime is 12747504127. The next prime is 12747504137. The reversal of 12747504128 is 82140574721.

It is a super-2 number, since 2×12747504128² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12747504127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52894088 + ... + 52894328.

It is an arithmetic number, because the mean of its divisors is an integer number (173791332).

Almost surely, 2^12747504128 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 12747504128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13903306560).

12747504128 is an abundant number, since it is smaller than the sum of its proper divisors (15059108992).

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

12747504128 is a wasteful number, since it uses less digits than its factorization.

12747504128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438 (or 422 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 41.

The spelling of 12747504128 in words is "twelve billion, seven hundred forty-seven million, five hundred four thousand, one hundred twenty-eight".