8515258064 has 20 divisors (see below), whose sum is σ = 17030517120. Its totient is φ = 4120285920.

The previous prime is 8515258021. The next prime is 8515258069. The reversal of 8515258064 is 4608525158.

8515258064 is an admirable number.

It is a super-3 number, since 3×8515258064³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8515258069) 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 3 ways as a sum of consecutive naturals, for example, 8583434 + ... + 8584425.

It is an arithmetic number, because the mean of its divisors is an integer number (851525856).

Almost surely, 2^8515258064 is an apocalyptic number.

It is an amenable number.

8515258064 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

8515258064 is a wasteful number, since it uses less digits than its factorization.

8515258064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17167898 (or 17167892 counting only the distinct ones).

The product of its (nonzero) digits is 384000, while the sum is 44.

The square root of 8515258064 is about 92278.1559416962. The cubic root of 8515258064 is about 2042.0479613002.

The spelling of 8515258064 in words is "eight billion, five hundred fifteen million, two hundred fifty-eight thousand, sixty-four".