8112788040 has 128 divisors (see below), whose sum is σ = 28712632320. Its totient is φ = 1794528000.

The previous prime is 8112787997. The next prime is 8112788041. The reversal of 8112788040 is 408872118.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8112788040.

It is not an unprimeable number, because it can be changed into a prime (8112788041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129736 + ... + 181815.

It is an arithmetic number, because the mean of its divisors is an integer number (224317440).

Almost surely, 2^8112788040 is an apocalyptic number.

It is an amenable number.

8112788040 is an abundant number, since it is smaller than the sum of its proper divisors (20599844280).

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

8112788040 is a wasteful number, since it uses less digits than its factorization.

8112788040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311603 (or 311599 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 39.

The square root of 8112788040 is about 90071.0166479762. The cubic root of 8112788040 is about 2009.3551754496.

The spelling of 8112788040 in words is "eight billion, one hundred twelve million, seven hundred eighty-eight thousand, forty".