8489856690 has 192 divisors, whose sum is σ = 25678598400. Its totient is φ = 1906094592.

The previous prime is 8489856677. The next prime is 8489856731. The reversal of 8489856690 is 966589848.

8489856690 is a `hidden beast` number, since 8 + 489 + 8 + 5 + 66 + 90 = 666.

It is a super-2 number, since 2×8489856690² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon 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, 11974056 + ... + 11974764.

It is an arithmetic number, because the mean of its divisors is an integer number (133742700).

Almost surely, 2^8489856690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8489856690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12839299200).

8489856690 is an abundant number, since it is smaller than the sum of its proper divisors (17188741710).

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

8489856690 is a wasteful number, since it uses less digits than its factorization.

8489856690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041 (or 1038 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The square root of 8489856690 is about 92140.4183298513. The cubic root of 8489856690 is about 2040.0154338509.

The spelling of 8489856690 in words is "eight billion, four hundred eighty-nine million, eight hundred fifty-six thousand, six hundred ninety".