3861630186 has 16 divisors (see below), whose sum is σ = 8129748000. Its totient is φ = 1219462128.

The previous prime is 3861630173. The next prime is 3861630209. The reversal of 3861630186 is 6810361683.

It is a Curzon number.

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, 16936861 + ... + 16937088.

It is an arithmetic number, because the mean of its divisors is an integer number (508109250).

Almost surely, 2^3861630186 is an apocalyptic number.

3861630186 is an abundant number, since it is smaller than the sum of its proper divisors (4268117814).

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

3861630186 is a wasteful number, since it uses less digits than its factorization.

3861630186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33873973.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 3861630186 is about 62142.0162691878. The cubic root of 3861630186 is about 1568.8818070001.

The spelling of 3861630186 in words is "three billion, eight hundred sixty-one million, six hundred thirty thousand, one hundred eighty-six".