19983942242836 has 96 divisors (see below), whose sum is σ = 42424105844736. Its totient is φ = 8111925360000.

The previous prime is 19983942242833. The next prime is 19983942242837. The reversal of 19983942242836 is 63824224938991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19983942242833) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58753861 + ... + 59093011.

It is an arithmetic number, because the mean of its divisors is an integer number (441917769216).

Almost surely, 2^{19983942242836} is an apocalyptic number.

It is an amenable number.

19983942242836 is an abundant number, since it is smaller than the sum of its proper divisors (22440163601900).

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

19983942242836 is a wasteful number, since it uses less digits than its factorization.

19983942242836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342533 (or 342531 counting only the distinct ones).

The product of its digits is 322486272, while the sum is 70.

The spelling of 19983942242836 in words is "nineteen trillion, nine hundred eighty-three billion, nine hundred forty-two million, two hundred forty-two thousand, eight hundred thirty-six".