3867305808481 has 4 divisors (see below), whose sum is σ = 3920282600452. Its totient is φ = 3814329016512.

The previous prime is 3867305808409. The next prime is 3867305808491. The reversal of 3867305808481 is 1848085037683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2122222536225 + 1745083272256 = 1456785^2 + 1321016^2 .

It is a cyclic number.

It is not a de Polignac number, because 3867305808481 - 2⁹ = 3867305807969 is a prime.

It is a super-3 number, since 3×3867305808481³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3867305808491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26488395876 + ... + 26488396021.

It is an arithmetic number, because the mean of its divisors is an integer number (980070650113).

Almost surely, 2^{3867305808481} is an apocalyptic number.

It is an amenable number.

3867305808481 is a deficient number, since it is larger than the sum of its proper divisors (52976791971).

3867305808481 is an equidigital number, since it uses as much as digits as its factorization.

3867305808481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52976791970.

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 3867305808481 in words is "three trillion, eight hundred sixty-seven billion, three hundred five million, eight hundred eight thousand, four hundred eighty-one".