19982977849383 has 8 divisors (see below), whose sum is σ = 26644106589168. Its totient is φ = 13321917171264.

The previous prime is 19982977849381. The next prime is 19982977849391. The reversal of 19982977849383 is 38394877928991.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 19982977849383 - 2¹ = 19982977849381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19982977849383.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19982977849381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16326360 + ... + 17507597.

It is an arithmetic number, because the mean of its divisors is an integer number (3330513323646).

Almost surely, 2^{19982977849383} is an apocalyptic number.

19982977849383 is a deficient number, since it is larger than the sum of its proper divisors (6661128739785).

19982977849383 is a wasteful number, since it uses less digits than its factorization.

19982977849383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34030833.

The product of its digits is 11851370496, while the sum is 87.

The spelling of 19982977849383 in words is "nineteen trillion, nine hundred eighty-two billion, nine hundred seventy-seven million, eight hundred forty-nine thousand, three hundred eighty-three".