3881763520 has 56 divisors (see below), whose sum is σ = 9260128800. Its totient is φ = 1549903872.

The previous prime is 3881763463. The next prime is 3881763541. The reversal of 3881763520 is 253671883.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171421 + ... + 192739.

Almost surely, 2^3881763520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3881763520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4630064400).

3881763520 is an abundant number, since it is smaller than the sum of its proper divisors (5378365280).

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

3881763520 is a wasteful number, since it uses less digits than its factorization.

3881763520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21905 (or 21895 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 3881763520 is about 62303.8002051239. The cubic root of 3881763520 is about 1571.6036354983.

The spelling of 3881763520 in words is "three billion, eight hundred eighty-one million, seven hundred sixty-three thousand, five hundred twenty".