4511881672 has 16 divisors (see below), whose sum is σ = 8465924700. Its totient is φ = 2254301760.

The previous prime is 4511881669. The next prime is 4511881711. The reversal of 4511881672 is 2761881154.

It can be written as a sum of positive squares in 2 ways, for example, as 3908000196 + 603881476 = 62514^2 + 24574^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 193147 + ... + 215242.

Almost surely, 2^4511881672 is an apocalyptic number.

It is an amenable number.

4511881672 is a deficient number, since it is larger than the sum of its proper divisors (3954043028).

4511881672 is a wasteful number, since it uses less digits than its factorization.

4511881672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409776 (or 409772 counting only the distinct ones).

The product of its digits is 107520, while the sum is 43.

The square root of 4511881672 is about 67170.5416979795. The cubic root of 4511881672 is about 1652.4153999182.

The spelling of 4511881672 in words is "four billion, five hundred eleven million, eight hundred eighty-one thousand, six hundred seventy-two".