3864725186644 has 12 divisors (see below), whose sum is σ = 7729450373344. Its totient is φ = 1656310794264.

The previous prime is 3864725186593. The next prime is 3864725186653. The reversal of 3864725186644 is 4466815274683.

3864725186644 is an admirable number.

It is a super-3 number, since 3×3864725186644³ (a number of 39 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (64) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69012949734 + ... + 69012949789.

Almost surely, 2^{3864725186644} is an apocalyptic number.

It is an amenable number.

3864725186644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3864725186644 is a wasteful number, since it uses less digits than its factorization.

3864725186644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138025899534 (or 138025899532 counting only the distinct ones).

The product of its digits is 185794560, while the sum is 64.

The spelling of 3864725186644 in words is "three trillion, eight hundred sixty-four billion, seven hundred twenty-five million, one hundred eighty-six thousand, six hundred forty-four".