287872913328 has 640 divisors, whose sum is σ = 1063191951360. Its totient is φ = 64594575360.

The previous prime is 287872913227. The next prime is 287872913353. The reversal of 287872913328 is 823319278782.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 160911858 + ... + 160913646.

It is an arithmetic number, because the mean of its divisors is an integer number (1661237424).

Almost surely, 2^287872913328 is an apocalyptic number.

287872913328 is a gapful number since it is divisible by the number (28) 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 287872913328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (531595975680).

287872913328 is an abundant number, since it is smaller than the sum of its proper divisors (775319038032).

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

287872913328 is a wasteful number, since it uses less digits than its factorization.

287872913328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045 (or 2039 counting only the distinct ones).

The product of its digits is 16257024, while the sum is 60.

The spelling of 287872913328 in words is "two hundred eighty-seven billion, eight hundred seventy-two million, nine hundred thirteen thousand, three hundred twenty-eight".