3806810681 has 8 divisors (see below), whose sum is σ = 3937524864. Its totient is φ = 3677899680.

The previous prime is 3806810669. The next prime is 3806810699. The reversal of 3806810681 is 1860186083.

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 3806810681 - 2¹⁴ = 3806794297 is a prime.

It is a super-2 number, since 2×3806810681² = 28983615121951367522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3806810611) 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 7 ways as a sum of consecutive naturals, for example, 446501 + ... + 454946.

It is an arithmetic number, because the mean of its divisors is an integer number (492190608).

Almost surely, 2^3806810681 is an apocalyptic number.

It is an amenable number.

3806810681 is a deficient number, since it is larger than the sum of its proper divisors (130714183).

3806810681 is a wasteful number, since it uses less digits than its factorization.

3806810681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901591.

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 3806810681 is about 61699.3572170732. The cubic root of 3806810681 is about 1561.4224754054.

The spelling of 3806810681 in words is "three billion, eight hundred six million, eight hundred ten thousand, six hundred eighty-one".