3118440648 has 128 divisors (see below), whose sum is σ = 8383979520. Its totient is φ = 964170240.

The previous prime is 3118440643. The next prime is 3118440709. The reversal of 3118440648 is 8460448113.

It is a Cunningham number, because it is equal to 55843²-1.

It is a super-3 number, since 3×3118440648³ (a number of 29 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (3118440643) 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 31 ways as a sum of consecutive naturals, for example, 5137161 + ... + 5137767.

It is an arithmetic number, because the mean of its divisors is an integer number (65499840).

Almost surely, 2^3118440648 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 3118440648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4191989760).

3118440648 is an abundant number, since it is smaller than the sum of its proper divisors (5265538872).

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

3118440648 is a wasteful number, since it uses less digits than its factorization.

3118440648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 907 (or 903 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 3118440648 is about 55842.9999910463. Note that the first 5 decimals coincide. The cubic root of 3118440648 is about 1460.9852372882.

The spelling of 3118440648 in words is "three billion, one hundred eighteen million, four hundred forty thousand, six hundred forty-eight".