4032644780172 has 48 divisors (see below), whose sum is σ = 9449169938432. Its totient is φ = 1338559326720.

The previous prime is 4032644780167. The next prime is 4032644780267. The reversal of 4032644780172 is 2710874462304.

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 15 ways as a sum of consecutive naturals, for example, 2283597 + ... + 3644187.

Almost surely, 2^{4032644780172} is an apocalyptic number.

It is an amenable number.

4032644780172 is an abundant number, since it is smaller than the sum of its proper divisors (5416525158260).

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

4032644780172 is a wasteful number, since it uses less digits than its factorization.

4032644780172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361638 (or 1361636 counting only the distinct ones).

The product of its (nonzero) digits is 1806336, while the sum is 48.

The spelling of 4032644780172 in words is "four trillion, thirty-two billion, six hundred forty-four million, seven hundred eighty thousand, one hundred seventy-two".