3804787411681 has 4 divisors (see below), whose sum is σ = 3807762227200. Its totient is φ = 3801812596164.

The previous prime is 3804787411669. The next prime is 3804787411721. The reversal of 3804787411681 is 1861147874083.

3804787411681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3804787411681 is a prime.

It is a super-2 number, since 2×3804787411681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3804787411081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487405841 + ... + 1487408398.

It is an arithmetic number, because the mean of its divisors is an integer number (951940556800).

Almost surely, 2^{3804787411681} is an apocalyptic number.

It is an amenable number.

3804787411681 is a deficient number, since it is larger than the sum of its proper divisors (2974815519).

3804787411681 is a wasteful number, since it uses less digits than its factorization.

3804787411681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2974815518.

The product of its (nonzero) digits is 7225344, while the sum is 58.

The spelling of 3804787411681 in words is "three trillion, eight hundred four billion, seven hundred eighty-seven million, four hundred eleven thousand, six hundred eighty-one".