8258868728 has 64 divisors (see below), whose sum is σ = 17009291520. Its totient is φ = 3728332800.

The previous prime is 8258868707. The next prime is 8258868731. The reversal of 8258868728 is 8278688528.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14313176 + ... + 14313752.

It is an arithmetic number, because the mean of its divisors is an integer number (265770180).

Almost surely, 2^8258868728 is an apocalyptic number.

8258868728 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

8258868728 is an abundant number, since it is smaller than the sum of its proper divisors (8750422792).

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

8258868728 is a wasteful number, since it uses less digits than its factorization.

8258868728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428 (or 1424 counting only the distinct ones).

The product of its digits is 27525120, while the sum is 62.

The square root of 8258868728 is about 90878.3182502845. The cubic root of 8258868728 is about 2021.3438047216.

The spelling of 8258868728 in words is "eight billion, two hundred fifty-eight million, eight hundred sixty-eight thousand, seven hundred twenty-eight".