3081626681 has 12 divisors (see below), whose sum is σ = 3647497152. Its totient is φ = 2550306864.

The previous prime is 3081626671. The next prime is 3081626693. The reversal of 3081626681 is 1866261803.

It is not a de Polignac number, because 3081626681 - 2⁶ = 3081626617 is a prime.

It is a super-2 number, since 2×3081626681² = 18992846002102151522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3081626651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255845 + ... + 267618.

It is an arithmetic number, because the mean of its divisors is an integer number (303958096).

Almost surely, 2^3081626681 is an apocalyptic number.

It is an amenable number.

3081626681 is a deficient number, since it is larger than the sum of its proper divisors (565870471).

3081626681 is an equidigital number, since it uses as much as digits as its factorization.

3081626681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523528 (or 523499 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 3081626681 is about 55512.4011460502. The cubic root of 3081626681 is about 1455.2133665989.

The spelling of 3081626681 in words is "three billion, eighty-one million, six hundred twenty-six thousand, six hundred eighty-one".