209869462284 has 48 divisors (see below), whose sum is σ = 493882583040. Its totient is φ = 69359293120.

The previous prime is 209869462259. The next prime is 209869462291. The reversal of 209869462284 is 482264968902.

209869462284 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 1683157 + ... + 1803539.

It is an arithmetic number, because the mean of its divisors is an integer number (10289220480).

Almost surely, 2^209869462284 is an apocalyptic number.

It is an amenable number.

209869462284 is an abundant number, since it is smaller than the sum of its proper divisors (284013120756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

209869462284 is a wasteful number, since it uses less digits than its factorization.

209869462284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121630 (or 121628 counting only the distinct ones).

The product of its (nonzero) digits is 23887872, while the sum is 60.

The spelling of 209869462284 in words is "two hundred nine billion, eight hundred sixty-nine million, four hundred sixty-two thousand, two hundred eighty-four".