8630775720 has 384 divisors, whose sum is σ = 34552396800. Its totient is φ = 1908748800.

The previous prime is 8630775701. The next prime is 8630775743. The reversal of 8630775720 is 275770368.

8630775720 is a `hidden beast` number, since 8 + 6 + 3 + 0 + 77 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1637890 + ... + 1643150.

It is an arithmetic number, because the mean of its divisors is an integer number (89980200).

Almost surely, 2^8630775720 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 8630775720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17276198400).

8630775720 is an abundant number, since it is smaller than the sum of its proper divisors (25921621080).

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

8630775720 is a wasteful number, since it uses less digits than its factorization.

8630775720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5326 (or 5309 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 45.

The square root of 8630775720 is about 92901.9683322157. The cubic root of 8630775720 is about 2051.2406307537.

The spelling of 8630775720 in words is "eight billion, six hundred thirty million, seven hundred seventy-five thousand, seven hundred twenty".