287386481448 has 144 divisors (see below), whose sum is σ = 905854671540. Its totient is φ = 81964016640.

The previous prime is 287386481441. The next prime is 287386481497. The reversal of 287386481448 is 844184683782.

287386481448 is a `hidden beast` number, since 2 + 8 + 73 + 86 + 48 + 1 + 448 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 285585497604 + 1800983844 = 534402^2 + 42438^2 .

It is not an unprimeable number, because it can be changed into a prime (287386481441) 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 35 ways as a sum of consecutive naturals, for example, 822115 + ... + 1118322.

Almost surely, 2^287386481448 is an apocalyptic number.

It is an amenable number.

287386481448 is an abundant number, since it is smaller than the sum of its proper divisors (618468190092).

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

287386481448 is a wasteful number, since it uses less digits than its factorization.

287386481448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1940488 (or 1940470 counting only the distinct ones).

The product of its digits is 66060288, while the sum is 63.

The spelling of 287386481448 in words is "two hundred eighty-seven billion, three hundred eighty-six million, four hundred eighty-one thousand, four hundred forty-eight".