8757234640 has 320 divisors, whose sum is σ = 26489733120. Its totient is φ = 2634508800.

The previous prime is 8757234637. The next prime is 8757234697. The reversal of 8757234640 is 464327578.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23105971 + ... + 23106349.

It is an arithmetic number, because the mean of its divisors is an integer number (82780416).

Almost surely, 2^8757234640 is an apocalyptic number.

8757234640 is a gapful number since it is divisible by the number (80) 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 8757234640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13244866560).

8757234640 is an abundant number, since it is smaller than the sum of its proper divisors (17732498480).

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

8757234640 is a wasteful number, since it uses less digits than its factorization.

8757234640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463 (or 435 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The square root of 8757234640 is about 93580.0974566708. The cubic root of 8757234640 is about 2061.2104175576.

The spelling of 8757234640 in words is "eight billion, seven hundred fifty-seven million, two hundred thirty-four thousand, six hundred forty".