8111408144 has 80 divisors (see below), whose sum is σ = 18644568576. Its totient is φ = 3346444800.

The previous prime is 8111408111. The next prime is 8111408177. The reversal of 8111408144 is 4418041118.

It is an interprime number because it is at equal distance from previous prime (8111408111) and next prime (8111408177).

It is a self number, because there is not a number n which added to its sum of digits gives 8111408144.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308474 + ... + 333734.

Almost surely, 2^8111408144 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 8111408144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9322284288).

8111408144 is an abundant number, since it is smaller than the sum of its proper divisors (10533160432).

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

8111408144 is a wasteful number, since it uses less digits than its factorization.

8111408144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25384 (or 25378 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 32.

The square root of 8111408144 is about 90063.3562776782. The cubic root of 8111408144 is about 2009.2412459196.

The spelling of 8111408144 in words is "eight billion, one hundred eleven million, four hundred eight thousand, one hundred forty-four".