8495389728 has 192 divisors, whose sum is σ = 28527448320. Its totient is φ = 2409302016.

The previous prime is 8495389723. The next prime is 8495389739. The reversal of 8495389728 is 8279835948.

8495389728 is a `hidden beast` number, since 8 + 4 + 9 + 538 + 97 + 2 + 8 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (8495389723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 823450 + ... + 833702.

It is an arithmetic number, because the mean of its divisors is an integer number (148580460).

Almost surely, 2^8495389728 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 8495389728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14263724160).

8495389728 is an abundant number, since it is smaller than the sum of its proper divisors (20032058592).

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

8495389728 is a wasteful number, since it uses less digits than its factorization.

8495389728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10416 (or 10402 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The square root of 8495389728 is about 92170.4384713450. The cubic root of 8495389728 is about 2040.4585128533.

The spelling of 8495389728 in words is "eight billion, four hundred ninety-five million, three hundred eighty-nine thousand, seven hundred twenty-eight".