4281781042386 has 48 divisors (see below), whose sum is σ = 9342501793560. Its totient is φ = 1417240074240.

The previous prime is 4281781042369. The next prime is 4281781042421. The reversal of 4281781042386 is 6832401871824.

4281781042386 is a `hidden beast` number, since 42 + 8 + 178 + 1 + 0 + 423 + 8 + 6 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3883386538161 + 398394504225 = 1970631^2 + 631185^2 .

It is a super-2 number, since 2×4281781042386² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 740320 + ... + 3018548.

Almost surely, 2^{4281781042386} is an apocalyptic number.

4281781042386 is an abundant number, since it is smaller than the sum of its proper divisors (5060720751174).

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

4281781042386 is a wasteful number, since it uses less digits than its factorization.

4281781042386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278971 (or 2278968 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 4281781042386 in words is "four trillion, two hundred eighty-one billion, seven hundred eighty-one million, forty-two thousand, three hundred eighty-six".