28526858080 has 48 divisors (see below), whose sum is σ = 77022519840. Its totient is φ = 9780636672.

The previous prime is 28526858053. The next prime is 28526858119. The reversal of 28526858080 is 8085862582.

It is a super-2 number, since 2×28526858080² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12734085 + ... + 12736324.

It is an arithmetic number, because the mean of its divisors is an integer number (1604635830).

Almost surely, 2^28526858080 is an apocalyptic number.

28526858080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28526858080 is an abundant number, since it is smaller than the sum of its proper divisors (48495661760).

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

28526858080 is a wasteful number, since it uses less digits than its factorization.

28526858080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25470431 (or 25470423 counting only the distinct ones).

The product of its (nonzero) digits is 2457600, while the sum is 52.

The spelling of 28526858080 in words is "twenty-eight billion, five hundred twenty-six million, eight hundred fifty-eight thousand, eighty".