3805764481 has 4 divisors (see below), whose sum is σ = 3877571412. Its totient is φ = 3733957552.

The previous prime is 3805764439. The next prime is 3805764509. The reversal of 3805764481 is 1844675083.

It is a happy number.

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 2156673600 + 1649090881 = 46440^2 + 40609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3805764481 is a prime.

It is a super-2 number, since 2×3805764481² = 28967686569682398722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3805768481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35903386 + ... + 35903491.

It is an arithmetic number, because the mean of its divisors is an integer number (969392853).

Almost surely, 2^3805764481 is an apocalyptic number.

It is an amenable number.

3805764481 is a deficient number, since it is larger than the sum of its proper divisors (71806931).

3805764481 is an equidigital number, since it uses as much as digits as its factorization.

3805764481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71806930.

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 3805764481 is about 61690.8784262309. The cubic root of 3805764481 is about 1561.2794239116.

The spelling of 3805764481 in words is "three billion, eight hundred five million, seven hundred sixty-four thousand, four hundred eighty-one".