8528679280 has 80 divisors (see below), whose sum is σ = 21650766048. Its totient is φ = 3098624000.

The previous prime is 8528679241. The next prime is 8528679293. The reversal of 8528679280 is 829768258.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×8528679280² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55).

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, 1194120 + ... + 1201240.

Almost surely, 2^8528679280 is an apocalyptic number.

8528679280 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8528679280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10825383024).

8528679280 is an abundant number, since it is smaller than the sum of its proper divisors (13122086768).

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

8528679280 is a wasteful number, since it uses less digits than its factorization.

8528679280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8506 (or 8500 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The square root of 8528679280 is about 92350.8488320492. The cubic root of 8528679280 is about 2043.1202474723.

The spelling of 8528679280 in words is "eight billion, five hundred twenty-eight million, six hundred seventy-nine thousand, two hundred eighty".