208984601887 has 8 divisors (see below), whose sum is σ = 223082156160. Its totient is φ = 195196884120.

The previous prime is 208984601873. The next prime is 208984601893. The reversal of 208984601887 is 788106489802.

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 208984601887 - 2²⁷ = 208850384159 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (208984601857) 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, 77457733 + ... + 77460430.

It is an arithmetic number, because the mean of its divisors is an integer number (27885269520).

Almost surely, 2^208984601887 is an apocalyptic number.

208984601887 is a deficient number, since it is larger than the sum of its proper divisors (14097554273).

208984601887 is a wasteful number, since it uses less digits than its factorization.

208984601887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154918253.

The product of its (nonzero) digits is 12386304, while the sum is 61.

The spelling of 208984601887 in words is "two hundred eight billion, nine hundred eighty-four million, six hundred one thousand, eight hundred eighty-seven".