4688031681 has 16 divisors (see below), whose sum is σ = 6967433920. Its totient is φ = 3115363680.

The previous prime is 4688031661. The next prime is 4688031697. The reversal of 4688031681 is 1861308864.

It is a happy number.

4688031681 is a `hidden beast` number, since 468 + 80 + 31 + 6 + 81 = 666.

It is not a de Polignac number, because 4688031681 - 2⁹ = 4688031169 is a prime.

It is a super-2 number, since 2×4688031681² = 43955282084119371522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4688031611) 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 15 ways as a sum of consecutive naturals, for example, 268915 + ... + 285816.

It is an arithmetic number, because the mean of its divisors is an integer number (435464620).

Almost surely, 2^4688031681 is an apocalyptic number.

It is an amenable number.

4688031681 is a deficient number, since it is larger than the sum of its proper divisors (2279402239).

4688031681 is a wasteful number, since it uses less digits than its factorization.

4688031681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555053 (or 555047 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 4688031681 is about 68469.2024270767. The cubic root of 4688031681 is about 1673.6456483297.

The spelling of 4688031681 in words is "four billion, six hundred eighty-eight million, thirty-one thousand, six hundred eighty-one".