3966938544 has 40 divisors (see below), whose sum is σ = 10343712960. Its totient is φ = 1309953088.

The previous prime is 3966938543. The next prime is 3966938551. The reversal of 3966938544 is 4458396693.

It is not an unprimeable number, because it can be changed into a prime (3966938543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381054 + ... + 391325.

It is an arithmetic number, because the mean of its divisors is an integer number (258592824).

Almost surely, 2^3966938544 is an apocalyptic number.

It is an amenable number.

3966938544 is an abundant number, since it is smaller than the sum of its proper divisors (6376774416).

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

3966938544 is a wasteful number, since it uses less digits than its factorization.

3966938544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772497 (or 772491 counting only the distinct ones).

The product of its digits is 16796160, while the sum is 57.

The square root of 3966938544 is about 62983.6371131423. The cubic root of 3966938544 is about 1583.0154643541.

The spelling of 3966938544 in words is "three billion, nine hundred sixty-six million, nine hundred thirty-eight thousand, five hundred forty-four".