3864728862736 has 40 divisors (see below), whose sum is σ = 8620078279680. Its totient is φ = 1644222491904.

The previous prime is 3864728862707. The next prime is 3864728862737. The reversal of 3864728862736 is 6372688274683.

It is a happy number.

It is a super-2 number, since 2×3864728862736² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3864728862737) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125920816 + ... + 125951503.

It is an arithmetic number, because the mean of its divisors is an integer number (215501956992).

Almost surely, 2^{3864728862736} is an apocalyptic number.

It is an amenable number.

3864728862736 is an abundant number, since it is smaller than the sum of its proper divisors (4755349416944).

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

3864728862736 is a wasteful number, since it uses less digits than its factorization.

3864728862736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251872471 (or 251872465 counting only the distinct ones).

The product of its digits is 780337152, while the sum is 70.

The spelling of 3864728862736 in words is "three trillion, eight hundred sixty-four billion, seven hundred twenty-eight million, eight hundred sixty-two thousand, seven hundred thirty-six".