8490645504 has 504 divisors, whose sum is σ = 28573730640. Its totient is φ = 2518179840.

The previous prime is 8490645503. The next prime is 8490645509. The reversal of 8490645504 is 4055460948.

8490645504 is a `hidden beast` number, since 8 + 4 + 90 + 6 + 4 + 550 + 4 = 666.

It is a super-2 number, since 2×8490645504² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8490645504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8490645503) by changing a digit.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 180652009 + ... + 180652055.

It is an arithmetic number, because the mean of its divisors is an integer number (56693910).

Almost surely, 2^8490645504 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 8490645504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14286865320).

8490645504 is an abundant number, since it is smaller than the sum of its proper divisors (20083085136).

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

8490645504 is an equidigital number, since it uses as much as digits as its factorization.

8490645504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 63 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 45.

The square root of 8490645504 is about 92144.6987297696. The cubic root of 8490645504 is about 2040.0786128875.

The spelling of 8490645504 in words is "eight billion, four hundred ninety million, six hundred forty-five thousand, five hundred four".