19980368386 has 16 divisors (see below), whose sum is σ = 32721752448. Its totient is φ = 9074595600.

The previous prime is 19980368371. The next prime is 19980368389. The reversal of 19980368386 is 68386308991.

It is a super-3 number, since 3×19980368386³ (a number of 32 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (19980368389) 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, 341805 + ... + 395968.

It is an arithmetic number, because the mean of its divisors is an integer number (2045109528).

Almost surely, 2^19980368386 is an apocalyptic number.

19980368386 is a deficient number, since it is larger than the sum of its proper divisors (12741384062).

19980368386 is a wasteful number, since it uses less digits than its factorization.

19980368386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739017.

The product of its (nonzero) digits is 13436928, while the sum is 61.

The spelling of 19980368386 in words is "nineteen billion, nine hundred eighty million, three hundred sixty-eight thousand, three hundred eighty-six".