3881763521 has 8 divisors (see below), whose sum is σ = 4051170240. Its totient is φ = 3712409712.

The previous prime is 3881763463. The next prime is 3881763541. The reversal of 3881763521 is 1253671883.

It is a happy number.

3881763521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 3881763521 - 2¹⁰ = 3881762497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3881763541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240326 + ... + 255968.

It is an arithmetic number, because the mean of its divisors is an integer number (506396280).

Almost surely, 2^3881763521 is an apocalyptic number.

It is an amenable number.

3881763521 is a deficient number, since it is larger than the sum of its proper divisors (169406719).

3881763521 is a wasteful number, since it uses less digits than its factorization.

3881763521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26455.

The product of its digits is 241920, while the sum is 44.

The square root of 3881763521 is about 62303.8002131491. The cubic root of 3881763521 is about 1571.6036356333.

The spelling of 3881763521 in words is "three billion, eight hundred eighty-one million, seven hundred sixty-three thousand, five hundred twenty-one".