287985479768 has 48 divisors (see below), whose sum is σ = 645109316880. Its totient is φ = 118056147264.

The previous prime is 287985479669. The next prime is 287985479801. The reversal of 287985479768 is 867974589782.

It is a junction number, because it is equal to n+sod(n) for n = 287985479692 and 287985479701.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4831055 + ... + 4890302.

It is an arithmetic number, because the mean of its divisors is an integer number (13439777435).

Almost surely, 2^287985479768 is an apocalyptic number.

287985479768 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

287985479768 is an abundant number, since it is smaller than the sum of its proper divisors (357123837112).

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

287985479768 is a wasteful number, since it uses less digits than its factorization.

287985479768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9721416 (or 9721389 counting only the distinct ones).

The product of its digits is 3413975040, while the sum is 80.

The spelling of 287985479768 in words is "two hundred eighty-seven billion, nine hundred eighty-five million, four hundred seventy-nine thousand, seven hundred sixty-eight".