3855911080 has 96 divisors (see below), whose sum is σ = 10041120000. Its totient is φ = 1305445248.

The previous prime is 3855911057. The next prime is 3855911089. The reversal of 3855911080 is 801195583.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (3855911089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1927921 + ... + 1929919.

It is an arithmetic number, because the mean of its divisors is an integer number (104595000).

Almost surely, 2^3855911080 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 3855911080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5020560000).

3855911080 is an abundant number, since it is smaller than the sum of its proper divisors (6185208920).

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

3855911080 is a wasteful number, since it uses less digits than its factorization.

3855911080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2183 (or 2096 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 40.

The square root of 3855911080 is about 62095.9828008221. The cubic root of 3855911080 is about 1568.1069153895.

The spelling of 3855911080 in words is "three billion, eight hundred fifty-five million, nine hundred eleven thousand, eighty".