19982785682 has 8 divisors (see below), whose sum is σ = 30335313456. Its totient is φ = 9871014532.

The previous prime is 19982785657. The next prime is 19982785723. The reversal of 19982785682 is 28658728991.

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

It is a super-2 number, since 2×19982785682² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60188948 + ... + 60189279.

It is an arithmetic number, because the mean of its divisors is an integer number (3791914182).

Almost surely, 2^19982785682 is an apocalyptic number.

19982785682 is a deficient number, since it is larger than the sum of its proper divisors (10352527774).

19982785682 is a wasteful number, since it uses less digits than its factorization.

19982785682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120378312.

The product of its digits is 34836480, while the sum is 65.

The spelling of 19982785682 in words is "nineteen billion, nine hundred eighty-two million, seven hundred eighty-five thousand, six hundred eighty-two".