28760306280 has 32 divisors (see below), whose sum is σ = 86280919200. Its totient is φ = 7669414976.

The previous prime is 28760306273. The next prime is 28760306299. The reversal of 28760306280 is 8260306782.

It is an unprimeable number.

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, 119834490 + ... + 119834729.

It is an arithmetic number, because the mean of its divisors is an integer number (2696278725).

Almost surely, 2^28760306280 is an apocalyptic number.

28760306280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28760306280 is an abundant number, since it is smaller than the sum of its proper divisors (57520612920).

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

28760306280 is a wasteful number, since it uses less digits than its factorization.

28760306280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239669233 (or 239669229 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 42.

The spelling of 28760306280 in words is "twenty-eight billion, seven hundred sixty million, three hundred six thousand, two hundred eighty".