12456129750 has 64 divisors (see below), whose sum is σ = 31270539456. Its totient is φ = 3302400000.

The previous prime is 12456129727. The next prime is 12456129769. The reversal of 12456129750 is 5792165421.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 81750 + ... + 177750.

It is an arithmetic number, because the mean of its divisors is an integer number (488602179).

Almost surely, 2^12456129750 is an apocalyptic number.

12456129750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12456129750, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15635269728).

12456129750 is an abundant number, since it is smaller than the sum of its proper divisors (18814409706).

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

12456129750 is a wasteful number, since it uses less digits than its factorization.

12456129750 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96194 (or 96184 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 12456129750 in words is "twelve billion, four hundred fifty-six million, one hundred twenty-nine thousand, seven hundred fifty".