3805835358681 has 24 divisors (see below), whose sum is σ = 5579960667840. Its totient is φ = 2499147554400.

The previous prime is 3805835358643. The next prime is 3805835358697. The reversal of 3805835358681 is 1868535385083.

3805835358681 is a `hidden beast` number, since 3 + 80 + 58 + 353 + 5 + 86 + 81 = 666.

It is not a de Polignac number, because 3805835358681 - 2⁶ = 3805835358617 is a prime.

It is a super-2 number, since 2×3805835358681² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3805835353681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2102655 + ... + 3468836.

It is an arithmetic number, because the mean of its divisors is an integer number (232498361160).

Almost surely, 2^{3805835358681} is an apocalyptic number.

It is an amenable number.

3805835358681 is a deficient number, since it is larger than the sum of its proper divisors (1774125309159).

3805835358681 is a wasteful number, since it uses less digits than its factorization.

3805835358681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5572637 (or 5572634 counting only the distinct ones).

The product of its (nonzero) digits is 82944000, while the sum is 63.

The spelling of 3805835358681 in words is "three trillion, eight hundred five billion, eight hundred thirty-five million, three hundred fifty-eight thousand, six hundred eighty-one".