12751523712 has 128 divisors (see below), whose sum is σ = 38652247200. Its totient is φ = 4135587840.

The previous prime is 12751523699. The next prime is 12751523717. The reversal of 12751523712 is 21732515721.

12751523712 is a `hidden beast` number, since 1 + 275 + 15 + 2 + 371 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12751523717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78012 + ... + 177732.

Almost surely, 2^12751523712 is an apocalyptic number.

12751523712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12751523712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19326123600).

12751523712 is an abundant number, since it is smaller than the sum of its proper divisors (25900723488).

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

12751523712 is an equidigital number, since it uses as much as digits as its factorization.

12751523712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99781 (or 99763 counting only the distinct ones).

The product of its digits is 29400, while the sum is 36.

The spelling of 12751523712 in words is "twelve billion, seven hundred fifty-one million, five hundred twenty-three thousand, seven hundred twelve".