4081818564746 has 8 divisors (see below), whose sum is σ = 6593706912324. Its totient is φ = 1883916260640.

The previous prime is 4081818564737. The next prime is 4081818564793. The reversal of 4081818564746 is 6474658181804.

It can be written as a sum of positive squares in 2 ways, for example, as 3984171689521 + 97646875225 = 1996039^2 + 312485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×4081818564746² (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 3 ways as a sum of consecutive naturals, for example, 78496510835 + ... + 78496510886.

Almost surely, 2^{4081818564746} is an apocalyptic number.

4081818564746 is a deficient number, since it is larger than the sum of its proper divisors (2511888347578).

4081818564746 is a wasteful number, since it uses less digits than its factorization.

4081818564746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156993021736.

The product of its (nonzero) digits is 41287680, while the sum is 62.

The spelling of 4081818564746 in words is "four trillion, eighty-one billion, eight hundred eighteen million, five hundred sixty-four thousand, seven hundred forty-six".