287280982560 has 384 divisors, whose sum is σ = 1091883711744. Its totient is φ = 62548623360.

The previous prime is 287280982543. The next prime is 287280982561. The reversal of 287280982560 is 65289082782.

It is a self number, because there is not a number n which added to its sum of digits gives 287280982560.

It is not an unprimeable number, because it can be changed into a prime (287280982561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2483122 + ... + 2596238.

It is an arithmetic number, because the mean of its divisors is an integer number (2843447166).

Almost surely, 2^287280982560 is an apocalyptic number.

287280982560 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 287280982560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545941855872).

287280982560 is an abundant number, since it is smaller than the sum of its proper divisors (804602729184).

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

287280982560 is a wasteful number, since it uses less digits than its factorization.

287280982560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113196 (or 113188 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 287280982560 in words is "two hundred eighty-seven billion, two hundred eighty million, nine hundred eighty-two thousand, five hundred sixty".