4511448381 has 32 divisors (see below), whose sum is σ = 6604978176. Its totient is φ = 2716416000.

The previous prime is 4511448379. The next prime is 4511448397. The reversal of 4511448381 is 1838441154.

It is not a de Polignac number, because 4511448381 - 2¹ = 4511448379 is a prime.

It is a super-2 number, since 2×4511448381² = 40706332988855042322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4511448301) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5732070 + ... + 5732856.

It is an arithmetic number, because the mean of its divisors is an integer number (206405568).

Almost surely, 2^4511448381 is an apocalyptic number.

It is an amenable number.

4511448381 is a deficient number, since it is larger than the sum of its proper divisors (2093529795).

4511448381 is a wasteful number, since it uses less digits than its factorization.

4511448381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1713.

The product of its digits is 61440, while the sum is 39.

The square root of 4511448381 is about 67167.3163153032. The cubic root of 4511448381 is about 1652.3625025764.

The spelling of 4511448381 in words is "four billion, five hundred eleven million, four hundred forty-eight thousand, three hundred eighty-one".