19629434142 has 12 divisors (see below), whose sum is σ = 42530440680. Its totient is φ = 6543144708.

The previous prime is 19629434141. The next prime is 19629434159. The reversal of 19629434142 is 24143492691.

19629434142 is a `hidden beast` number, since 1 + 9 + 629 + 4 + 3 + 4 + 14 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19629434141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 545262042 + ... + 545262077.

It is an arithmetic number, because the mean of its divisors is an integer number (3544203390).

Almost surely, 2^19629434142 is an apocalyptic number.

19629434142 is an abundant number, since it is smaller than the sum of its proper divisors (22901006538).

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

19629434142 is a wasteful number, since it uses less digits than its factorization.

19629434142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090524127 (or 1090524124 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The spelling of 19629434142 in words is "nineteen billion, six hundred twenty-nine million, four hundred thirty-four thousand, one hundred forty-two".