4281781213305 has 48 divisors (see below), whose sum is σ = 7690081464000. Its totient is φ = 2201308841088.

The previous prime is 4281781213219. The next prime is 4281781213327. The reversal of 4281781213305 is 5033121871824.

4281781213305 is a `hidden beast` number, since 4 + 28 + 178 + 121 + 330 + 5 = 666.

It is not a de Polignac number, because 4281781213305 - 2⁸ = 4281781213049 is a prime.

It is a super-2 number, since 2×4281781213305² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1842495 + ... + 3458084.

It is an arithmetic number, because the mean of its divisors is an integer number (160210030500).

Almost surely, 2^{4281781213305} is an apocalyptic number.

4281781213305 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4281781213305 is a deficient number, since it is larger than the sum of its proper divisors (3408300250695).

4281781213305 is a wasteful number, since it uses less digits than its factorization.

4281781213305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5301238 (or 5301235 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 4281781213305 in words is "four trillion, two hundred eighty-one billion, seven hundred eighty-one million, two hundred thirteen thousand, three hundred five".