3881651776 has 28 divisors (see below), whose sum is σ = 7808177932. Its totient is φ = 1914236928.

The previous prime is 3881651771. The next prime is 3881651821. The reversal of 3881651776 is 6771561883.

3881651776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1216614400 + 2665037376 = 34880^2 + 51624^2 .

It is not an unprimeable number, because it can be changed into a prime (3881651771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 410745 + ... + 420088.

Almost surely, 2^3881651776 is an apocalyptic number.

It is an amenable number.

3881651776 is an abundant number, since it is smaller than the sum of its proper divisors (3926526156).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3881651776 is an equidigital number, since it uses as much as digits as its factorization.

3881651776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 830918 (or 830908 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 52.

The square root of 3881651776 is about 62302.9034315416. The cubic root of 3881651776 is about 1571.5885548131.

The spelling of 3881651776 in words is "three billion, eight hundred eighty-one million, six hundred fifty-one thousand, seven hundred seventy-six".