12751858512 has 240 divisors, whose sum is σ = 39704333760. Its totient is φ = 3949710336.

The previous prime is 12751858481. The next prime is 12751858541. The reversal of 12751858512 is 21585815721.

It is a happy number.

12751858512 is a `hidden beast` number, since 1 + 2 + 7 + 51 + 8 + 585 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3913588 + ... + 3916844.

It is an arithmetic number, because the mean of its divisors is an integer number (165434724).

Almost surely, 2^12751858512 is an apocalyptic number.

12751858512 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 12751858512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19852166880).

12751858512 is an abundant number, since it is smaller than the sum of its proper divisors (26952475248).

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

12751858512 is a wasteful number, since it uses less digits than its factorization.

12751858512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3352 (or 3334 counting only the distinct ones).

The product of its digits is 224000, while the sum is 45.

The spelling of 12751858512 in words is "twelve billion, seven hundred fifty-one million, eight hundred fifty-eight thousand, five hundred twelve".