3805027681 has 16 divisors (see below), whose sum is σ = 4739543424. Its totient is φ = 2974293504.

The previous prime is 3805027661. The next prime is 3805027693. The reversal of 3805027681 is 1867205083.

It is not a de Polignac number, because 3805027681 - 2⁵ = 3805027649 is a prime.

It is a super-2 number, since 2×3805027681² = 28956471306352475522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3805027631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244336 + ... + 259441.

It is an arithmetic number, because the mean of its divisors is an integer number (296221464).

Almost surely, 2^3805027681 is an apocalyptic number.

It is an amenable number.

3805027681 is a deficient number, since it is larger than the sum of its proper divisors (934515743).

3805027681 is a wasteful number, since it uses less digits than its factorization.

3805027681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503880.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 3805027681 is about 61684.9064277478. The cubic root of 3805027681 is about 1561.1786622968.

The spelling of 3805027681 in words is "three billion, eight hundred five million, twenty-seven thousand, six hundred eighty-one".