19886881382 has 8 divisors (see below), whose sum is σ = 29872398000. Its totient is φ = 9929415384.

The previous prime is 19886881379. The next prime is 19886881387. The reversal of 19886881382 is 28318868891.

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

It is a super-2 number, since 2×19886881382² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19886881387) 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 3 ways as a sum of consecutive naturals, for example, 7010882 + ... + 7013717.

It is an arithmetic number, because the mean of its divisors is an integer number (3734049750).

Almost surely, 2^19886881382 is an apocalyptic number.

19886881382 is a deficient number, since it is larger than the sum of its proper divisors (9985516618).

19886881382 is a wasteful number, since it uses less digits than its factorization.

19886881382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14025310.

The product of its digits is 10616832, while the sum is 62.

The spelling of 19886881382 in words is "nineteen billion, eight hundred eighty-six million, eight hundred eighty-one thousand, three hundred eighty-two".