8000078508 has 96 divisors (see below), whose sum is σ = 21121425920. Its totient is φ = 2617945920.

The previous prime is 8000078483. The next prime is 8000078579. The reversal of 8000078508 is 8058700008.

8000078508 is a `hidden beast` number, since 80 + 0 + 0 + 0 + 78 + 508 = 666.

It is a super-2 number, since 2×8000078508² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5183985 + ... + 5185527.

Almost surely, 2^8000078508 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 8000078508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10560712960).

8000078508 is an abundant number, since it is smaller than the sum of its proper divisors (13121347412).

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

8000078508 is a wasteful number, since it uses less digits than its factorization.

8000078508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2404 (or 2396 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 36.

The square root of 8000078508 is about 89443.1579719768. The cubic root of 8000078508 is about 2000.0065423119.

The spelling of 8000078508 in words is "eight billion, seventy-eight thousand, five hundred eight".