3865067580 has 96 divisors (see below), whose sum is σ = 12006247680. Its totient is φ = 921095680.

The previous prime is 3865067579. The next prime is 3865067603. The reversal of 3865067580 is 857605683.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10689 + ... + 88568.

It is an arithmetic number, because the mean of its divisors is an integer number (125065080).

Almost surely, 2^3865067580 is an apocalyptic number.

3865067580 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3865067580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6003123840).

3865067580 is an abundant number, since it is smaller than the sum of its proper divisors (8141180100).

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

3865067580 is a wasteful number, since it uses less digits than its factorization.

3865067580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99339 (or 99337 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 48.

The square root of 3865067580 is about 62169.6676844906. The cubic root of 3865067580 is about 1569.3471774356.

The spelling of 3865067580 in words is "three billion, eight hundred sixty-five million, sixty-seven thousand, five hundred eighty".