28076266500 has 96 divisors (see below), whose sum is σ = 81820502400. Its totient is φ = 7481289600.

The previous prime is 28076266469. The next prime is 28076266523. The reversal of 28076266500 is 566267082.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2182086 + ... + 2194914.

It is an arithmetic number, because the mean of its divisors is an integer number (852296900).

Almost surely, 2^28076266500 is an apocalyptic number.

28076266500 is a gapful number since it is divisible by the number (20) 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 28076266500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40910251200).

28076266500 is an abundant number, since it is smaller than the sum of its proper divisors (53744235900).

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

28076266500 is a wasteful number, since it uses less digits than its factorization.

28076266500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14310 (or 14298 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 42.

The spelling of 28076266500 in words is "twenty-eight billion, seventy-six million, two hundred sixty-six thousand, five hundred".