19988595342 has 56 divisors (see below), whose sum is σ = 47598173856. Its totient is φ = 6270924096.

The previous prime is 19988595323. The next prime is 19988595343. The reversal of 19988595342 is 24359588991.

19988595342 is a `hidden beast` number, since 1 + 9 + 9 + 8 + 8 + 595 + 34 + 2 = 666.

19988595342 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 19988595342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19988595343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 378438 + ... + 428009.

Almost surely, 2^19988595342 is an apocalyptic number.

19988595342 is an abundant number, since it is smaller than the sum of its proper divisors (27609578514).

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

19988595342 is an equidigital number, since it uses as much as digits as its factorization.

19988595342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806484 (or 806469 counting only the distinct ones).

The product of its digits is 27993600, while the sum is 63.

The spelling of 19988595342 in words is "nineteen billion, nine hundred eighty-eight million, five hundred ninety-five thousand, three hundred forty-two".