20008984867 has 8 divisors (see below), whose sum is σ = 20207393024. Its totient is φ = 19810656648.

The previous prime is 20008984837. The next prime is 20008984871. The reversal of 20008984867 is 76848980002.

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

It is a cyclic number.

It is not a de Polignac number, because 20008984867 - 2¹⁵ = 20008952099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20008984837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 568258 + ... + 602440.

It is an arithmetic number, because the mean of its divisors is an integer number (2525924128).

Almost surely, 2^20008984867 is an apocalyptic number.

20008984867 is a deficient number, since it is larger than the sum of its proper divisors (198408157).

20008984867 is a wasteful number, since it uses less digits than its factorization.

20008984867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39969.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 20008984867 in words is "twenty billion, eight million, nine hundred eighty-four thousand, eight hundred sixty-seven".