3855581184 has 256 divisors, whose sum is σ = 12683381760. Its totient is φ = 1014497280.

The previous prime is 3855581179. The next prime is 3855581201. The reversal of 3855581184 is 4811855583.

It is a tau number, because it is divible by the number of its divisors (256).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8945449 + ... + 8945879.

It is an arithmetic number, because the mean of its divisors is an integer number (49544460).

Almost surely, 2^3855581184 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 3855581184, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6341690880).

3855581184 is an abundant number, since it is smaller than the sum of its proper divisors (8827800576).

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

3855581184 is an equidigital number, since it uses as much as digits as its factorization.

3855581184 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484 (or 456 counting only the distinct ones).

The product of its digits is 768000, while the sum is 48.

The square root of 3855581184 is about 62093.3264046951. The cubic root of 3855581184 is about 1568.0621938402.

The spelling of 3855581184 in words is "three billion, eight hundred fifty-five million, five hundred eighty-one thousand, one hundred eighty-four".