4081818564745 has 16 divisors (see below), whose sum is σ = 4907849760000. Its totient is φ = 3259013179968.

The previous prime is 4081818564737. The next prime is 4081818564793. The reversal of 4081818564745 is 5474658181804.

It is a cyclic number.

It is not a de Polignac number, because 4081818564745 - 2³ = 4081818564737 is a prime.

It is a super-2 number, since 2×4081818564745² (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 15 ways as a sum of consecutive naturals, for example, 9735091 + ... + 10145719.

It is an arithmetic number, because the mean of its divisors is an integer number (306740610000).

Almost surely, 2^{4081818564745} is an apocalyptic number.

It is an amenable number.

4081818564745 is a deficient number, since it is larger than the sum of its proper divisors (826031195255).

4081818564745 is a wasteful number, since it uses less digits than its factorization.

4081818564745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414552.

The product of its (nonzero) digits is 34406400, while the sum is 61.

The spelling of 4081818564745 in words is "four trillion, eighty-one billion, eight hundred eighteen million, five hundred sixty-four thousand, seven hundred forty-five".