8528386381 has 8 divisors (see below), whose sum is σ = 9027643680. Its totient is φ = 8042807472.

The previous prime is 8528386357. The next prime is 8528386397. The reversal of 8528386381 is 1836838258.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8528386381 - 2⁷ = 8528386253 is a prime.

It is a super-2 number, since 2×8528386381² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8528386351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3418315 + ... + 3420808.

It is an arithmetic number, because the mean of its divisors is an integer number (1128455460).

Almost surely, 2^8528386381 is an apocalyptic number.

It is an amenable number.

8528386381 is a deficient number, since it is larger than the sum of its proper divisors (499257299).

8528386381 is a wasteful number, since it uses less digits than its factorization.

8528386381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839195.

The product of its digits is 2211840, while the sum is 52.

The square root of 8528386381 is about 92349.2630235889. The cubic root of 8528386381 is about 2043.0968583594.

The spelling of 8528386381 in words is "eight billion, five hundred twenty-eight million, three hundred eighty-six thousand, three hundred eighty-one".