12751342128 has 180 divisors, whose sum is σ = 42098676048. Its totient is φ = 3591786240.

The previous prime is 12751342039. The next prime is 12751342183. The reversal of 12751342128 is 82124315721.

12751342128 is a `hidden beast` number, since 12 + 7 + 513 + 4 + 2 + 128 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12751342092 and 12751342101.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 488250 + ... + 513702.

Almost surely, 2^12751342128 is an apocalyptic number.

12751342128 is a gapful number since it is divisible by the number (18) 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 12751342128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21049338024).

12751342128 is an abundant number, since it is smaller than the sum of its proper divisors (29347333920).

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

12751342128 is a wasteful number, since it uses less digits than its factorization.

12751342128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25552 (or 25536 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

Adding to 12751342128 its reverse (82124315721), we get a palindrome (94875657849).

The spelling of 12751342128 in words is "twelve billion, seven hundred fifty-one million, three hundred forty-two thousand, one hundred twenty-eight".