8111248440 has 32 divisors (see below), whose sum is σ = 24333745680. Its totient is φ = 2162999552.

The previous prime is 8111248421. The next prime is 8111248459. The reversal of 8111248440 is 448421118.

It is an interprime number because it is at equal distance from previous prime (8111248421) and next prime (8111248459).

It is a super-3 number, since 3×8111248440³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 33796749 + ... + 33796988.

Almost surely, 2^8111248440 is an apocalyptic number.

It is an amenable number.

8111248440 is an abundant number, since it is smaller than the sum of its proper divisors (16222497240).

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

8111248440 is a wasteful number, since it uses less digits than its factorization.

8111248440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67593751 (or 67593747 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 8111248440 is about 90062.4696530136. The cubic root of 8111248440 is about 2009.2280593078.

Adding to 8111248440 its reverse (448421118), we get a palindrome (8559669558).

The spelling of 8111248440 in words is "eight billion, one hundred eleven million, two hundred forty-eight thousand, four hundred forty".