287020485984 has 48 divisors (see below), whose sum is σ = 773791725168. Its totient is φ = 93087724032.

The previous prime is 287020485959. The next prime is 287020486001. The reversal of 287020485984 is 489584020782.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40399107 + ... + 40406210.

It is an arithmetic number, because the mean of its divisors is an integer number (16120660941).

Almost surely, 2^287020485984 is an apocalyptic number.

287020485984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

287020485984 is an abundant number, since it is smaller than the sum of its proper divisors (486771239184).

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

287020485984 is a wasteful number, since it uses less digits than its factorization.

287020485984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80805367 (or 80805359 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 57.

The spelling of 287020485984 in words is "two hundred eighty-seven billion, twenty million, four hundred eighty-five thousand, nine hundred eighty-four".