285263341420 has 48 divisors (see below), whose sum is σ = 608954649408. Its totient is φ = 112219810560.

The previous prime is 285263341361. The next prime is 285263341421. The reversal of 285263341420 is 24143362582.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (285263341421) 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 15 ways as a sum of consecutive naturals, for example, 15407889 + ... + 15426391.

It is an arithmetic number, because the mean of its divisors is an integer number (12686555196).

Almost surely, 2^285263341420 is an apocalyptic number.

285263341420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285263341420 is an abundant number, since it is smaller than the sum of its proper divisors (323691307988).

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

285263341420 is a wasteful number, since it uses less digits than its factorization.

285263341420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31210 (or 31208 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 40.

The spelling of 285263341420 in words is "two hundred eighty-five billion, two hundred sixty-three million, three hundred forty-one thousand, four hundred twenty".