19982699986 has 8 divisors (see below), whose sum is σ = 29989419264. Its totient is φ = 9986226900.

The previous prime is 19982699959. The next prime is 19982699987. The reversal of 19982699986 is 68999628991.

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

It is not an unprimeable number, because it can be changed into a prime (19982699987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556670 + ... + 2564473.

It is an arithmetic number, because the mean of its divisors is an integer number (3748677408).

Almost surely, 2^19982699986 is an apocalyptic number.

19982699986 is a deficient number, since it is larger than the sum of its proper divisors (10006719278).

19982699986 is a wasteful number, since it uses less digits than its factorization.

19982699986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5123096.

The product of its digits is 272097792, while the sum is 76.

The spelling of 19982699986 in words is "nineteen billion, nine hundred eighty-two million, six hundred ninety-nine thousand, nine hundred eighty-six".