8657938416 has 80 divisors (see below), whose sum is σ = 23126297600. Its totient is φ = 2788231680.

The previous prime is 8657938351. The next prime is 8657938417. The reversal of 8657938416 is 6148397568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8657938417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 952260 + ... + 961308.

It is an arithmetic number, because the mean of its divisors is an integer number (289078720).

Almost surely, 2^8657938416 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 8657938416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11563148800).

8657938416 is an abundant number, since it is smaller than the sum of its proper divisors (14468359184).

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

8657938416 is a wasteful number, since it uses less digits than its factorization.

8657938416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9734 (or 9728 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 57.

The square root of 8657938416 is about 93048.0435903947. The cubic root of 8657938416 is about 2053.3902589585.

The spelling of 8657938416 in words is "eight billion, six hundred fifty-seven million, nine hundred thirty-eight thousand, four hundred sixteen".