4511981376 has 168 divisors, whose sum is σ = 15558495680. Its totient is φ = 1221267456.

The previous prime is 4511981371. The next prime is 4511981381. The reversal of 4511981376 is 6731891154.

4511981376 is a `hidden beast` number, since 451 + 198 + 1 + 3 + 7 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (4511981371) and next prime (4511981381).

It is a tau number, because it is divible by the number of its divisors (168).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4511981371) 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 23 ways as a sum of consecutive naturals, for example, 47160 + ... + 106056.

Almost surely, 2^4511981376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4511981376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7779247840).

4511981376 is an abundant number, since it is smaller than the sum of its proper divisors (11046514304).

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

4511981376 is a wasteful number, since it uses less digits than its factorization.

4511981376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58941 (or 58928 counting only the distinct ones).

The product of its digits is 181440, while the sum is 45.

The square root of 4511981376 is about 67171.2838644610. The cubic root of 4511981376 is about 1652.4275715740.

The spelling of 4511981376 in words is "four billion, five hundred eleven million, nine hundred eighty-one thousand, three hundred seventy-six".