3984578499332 has 12 divisors (see below), whose sum is σ = 6991706779596. Its totient is φ = 1986947990880.

The previous prime is 3984578499329. The next prime is 3984578499337. The reversal of 3984578499332 is 2339948754893.

It can be written as a sum of positive squares in 2 ways, for example, as 1024884917956 + 2959693581376 = 1012366^2 + 1720376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 3984578499332.

It is not an unprimeable number, because it can be changed into a prime (3984578499337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1335313019 + ... + 1335316002.

It is an arithmetic number, because the mean of its divisors is an integer number (582642231633).

Almost surely, 2^{3984578499332} is an apocalyptic number.

It is an amenable number.

3984578499332 is a deficient number, since it is larger than the sum of its proper divisors (3007128280264).

3984578499332 is a wasteful number, since it uses less digits than its factorization.

3984578499332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2670629398 (or 2670629396 counting only the distinct ones).

The product of its digits is 1410877440, while the sum is 74.

The spelling of 3984578499332 in words is "three trillion, nine hundred eighty-four billion, five hundred seventy-eight million, four hundred ninety-nine thousand, three hundred thirty-two".