3804745361681 has 8 divisors (see below), whose sum is σ = 4153866417504. Its totient is φ = 3456163491520.

The previous prime is 3804745361551. The next prime is 3804745361687. The reversal of 3804745361681 is 1861635474083.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 3804745361681 - 2¹⁰ = 3804745360657 is a prime.

It is a super-2 number, since 2×3804745361681² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3804745361687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134781656 + ... + 134809881.

It is an arithmetic number, because the mean of its divisors is an integer number (519233302188).

Almost surely, 2^{3804745361681} is an apocalyptic number.

It is an amenable number.

3804745361681 is a deficient number, since it is larger than the sum of its proper divisors (349121055823).

3804745361681 is a wasteful number, since it uses less digits than its factorization.

3804745361681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269592831.

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 3804745361681 in words is "three trillion, eight hundred four billion, seven hundred forty-five million, three hundred sixty-one thousand, six hundred eighty-one".