284778535260 has 48 divisors (see below), whose sum is σ = 798476829696. Its totient is φ = 75836473152.

The previous prime is 284778535243. The next prime is 284778535267. The reversal of 284778535260 is 62535877482.

It is a self number, because there is not a number n which added to its sum of digits gives 284778535260.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284778535267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3220692 + ... + 3307931.

It is an arithmetic number, because the mean of its divisors is an integer number (16634933952).

Almost surely, 2^284778535260 is an apocalyptic number.

284778535260 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

284778535260 is an abundant number, since it is smaller than the sum of its proper divisors (513698294436).

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

284778535260 is a wasteful number, since it uses less digits than its factorization.

284778535260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6529362 (or 6529360 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 57.

The spelling of 284778535260 in words is "two hundred eighty-four billion, seven hundred seventy-eight million, five hundred thirty-five thousand, two hundred sixty".