8717752242 has 12 divisors (see below), whose sum is σ = 18888463230. Its totient is φ = 2905917408.

The previous prime is 8717752217. The next prime is 8717752247. The reversal of 8717752242 is 2422577178.

8717752242 is a `hidden beast` number, since 87 + 1 + 7 + 7 + 522 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5816960361 + 2900791881 = 76269^2 + 53859^2 .

It is not an unprimeable number, because it can be changed into a prime (8717752247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 242159767 + ... + 242159802.

Almost surely, 2^8717752242 is an apocalyptic number.

8717752242 is an abundant number, since it is smaller than the sum of its proper divisors (10170710988).

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

8717752242 is a wasteful number, since it uses less digits than its factorization.

8717752242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484319577 (or 484319574 counting only the distinct ones).

The product of its digits is 439040, while the sum is 45.

The square root of 8717752242 is about 93368.9040419775. The cubic root of 8717752242 is about 2058.1080629592.

The spelling of 8717752242 in words is "eight billion, seven hundred seventeen million, seven hundred fifty-two thousand, two hundred forty-two".