281481663200 has 36 divisors (see below), whose sum is σ = 687167112240. Its totient is φ = 112592664960.

The previous prime is 281481663193. The next prime is 281481663259. The reversal of 281481663200 is 2366184182.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175925240 + ... + 175926839.

It is an arithmetic number, because the mean of its divisors is an integer number (19087975340).

Almost surely, 2^281481663200 is an apocalyptic number.

281481663200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

281481663200 is an abundant number, since it is smaller than the sum of its proper divisors (405685449040).

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

281481663200 is a wasteful number, since it uses less digits than its factorization.

281481663200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351852099 (or 351852086 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 281481663200 in words is "two hundred eighty-one billion, four hundred eighty-one million, six hundred sixty-three thousand, two hundred".