3788916681 has 24 divisors (see below), whose sum is σ = 5557280512. Its totient is φ = 2294503200.

The previous prime is 3788916631. The next prime is 3788916683. The reversal of 3788916681 is 1866198873.

It is not a de Polignac number, because 3788916681 - 2⁷ = 3788916553 is a prime.

It is a super-2 number, since 2×3788916681² = 28711779231120111522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3788916683) 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 23 ways as a sum of consecutive naturals, for example, 565491 + ... + 572151.

Almost surely, 2^3788916681 is an apocalyptic number.

It is an amenable number.

3788916681 is a deficient number, since it is larger than the sum of its proper divisors (1768363831).

3788916681 is a wasteful number, since it uses less digits than its factorization.

3788916681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8253 (or 8242 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 57.

The square root of 3788916681 is about 61554.1767957301. The cubic root of 3788916681 is about 1558.9721314927.

The spelling of 3788916681 in words is "three billion, seven hundred eighty-eight million, nine hundred sixteen thousand, six hundred eighty-one".