12429845442 has 160 divisors (see below), whose sum is σ = 33010395264. Its totient is φ = 3421958400.

The previous prime is 12429845431. The next prime is 12429845471. The reversal of 12429845442 is 24454892421.

12429845442 is a `hidden beast` number, since 1 + 2 + 4 + 29 + 84 + 544 + 2 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3857392 + ... + 3860612.

Almost surely, 2^12429845442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12429845442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16505197632).

12429845442 is an abundant number, since it is smaller than the sum of its proper divisors (20580549822).

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

12429845442 is a wasteful number, since it uses less digits than its factorization.

12429845442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3366 (or 3357 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The spelling of 12429845442 in words is "twelve billion, four hundred twenty-nine million, eight hundred forty-five thousand, four hundred forty-two".