8136868608 has 648 divisors, whose sum is σ = 28498788864. Its totient is φ = 2308331520.

The previous prime is 8136868591. The next prime is 8136868637. The reversal of 8136868608 is 8068686318.

It is a tau number, because it is divible by the number of its divisors (648).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 173124841 + ... + 173124887.

Almost surely, 2^8136868608 is an apocalyptic number.

8136868608 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8136868608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14249394432).

8136868608 is an abundant number, since it is smaller than the sum of its proper divisors (20361920256).

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

8136868608 is a wasteful number, since it uses less digits than its factorization.

8136868608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 2654208, while the sum is 54.

The square root of 8136868608 is about 90204.5930537908. The cubic root of 8136868608 is about 2011.3412834145.

The spelling of 8136868608 in words is "eight billion, one hundred thirty-six million, eight hundred sixty-eight thousand, six hundred eight".