8071142144 has 72 divisors (see below), whose sum is σ = 17909953152. Its totient is φ = 3604930560.

The previous prime is 8071142119. The next prime is 8071142161. The reversal of 8071142144 is 4412411708.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 8071142144.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64052 + ... + 142284.

Almost surely, 2^8071142144 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 8071142144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8954976576).

8071142144 is an abundant number, since it is smaller than the sum of its proper divisors (9838811008).

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

8071142144 is a wasteful number, since it uses less digits than its factorization.

8071142144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78293 (or 78279 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 32.

The square root of 8071142144 is about 89839.5355286302. The cubic root of 8071142144 is about 2005.9110246826.

The spelling of 8071142144 in words is "eight billion, seventy-one million, one hundred forty-two thousand, one hundred forty-four".