20982984608 has 24 divisors (see below), whose sum is σ = 41774416740. Its totient is φ = 10373608960.

The previous prime is 20982984593. The next prime is 20982984611. The reversal of 20982984608 is 80648928902.

It can be written as a sum of positive squares in 2 ways, for example, as 20813255824 + 169728784 = 144268^2 + 13028^2 .

It is an unprimeable number.

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, 3680963 + ... + 3686658.

Almost surely, 2^20982984608 is an apocalyptic number.

It is an amenable number.

20982984608 is a deficient number, since it is larger than the sum of its proper divisors (20791432132).

20982984608 is an equidigital number, since it uses as much as digits as its factorization.

20982984608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7367720 (or 7367712 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 56.

The spelling of 20982984608 in words is "twenty billion, nine hundred eighty-two million, nine hundred eighty-four thousand, six hundred eight".