284988487868 has 48 divisors (see below), whose sum is σ = 604265109504. Its totient is φ = 115003437120.

The previous prime is 284988487813. The next prime is 284988487877. The reversal of 284988487868 is 868784889482.

It is a junction number, because it is equal to n+sod(n) for n = 284988487792 and 284988487801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4404746 + ... + 4468977.

It is an arithmetic number, because the mean of its divisors is an integer number (12588856448).

Almost surely, 2^284988487868 is an apocalyptic number.

284988487868 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

284988487868 is an abundant number, since it is smaller than the sum of its proper divisors (319276621636).

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

284988487868 is a wasteful number, since it uses less digits than its factorization.

284988487868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873802 (or 8873800 counting only the distinct ones).

The product of its digits is 3170893824, while the sum is 80.

The spelling of 284988487868 in words is "two hundred eighty-four billion, nine hundred eighty-eight million, four hundred eighty-seven thousand, eight hundred sixty-eight".