8157650688 has 216 divisors, whose sum is σ = 25902917040. Its totient is φ = 2448506880.

The previous prime is 8157650681. The next prime is 8157650689. The reversal of 8157650688 is 8860567518.

8157650688 is a `hidden beast` number, since 8 + 1 + 57 + 6 + 506 + 88 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8157650681) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2761020 + ... + 2763972.

Almost surely, 2^8157650688 is an apocalyptic number.

8157650688 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 8157650688, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12951458520).

8157650688 is an abundant number, since it is smaller than the sum of its proper divisors (17745266352).

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

8157650688 is a wasteful number, since it uses less digits than its factorization.

8157650688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3095 (or 3078 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The square root of 8157650688 is about 90319.7137285100. The cubic root of 8157650688 is about 2013.0521921757.

The spelling of 8157650688 in words is "eight billion, one hundred fifty-seven million, six hundred fifty thousand, six hundred eighty-eight".