28933390248 has 96 divisors (see below), whose sum is σ = 87044608800. Its totient is φ = 7981615488.

The previous prime is 28933390207. The next prime is 28933390259. The reversal of 28933390248 is 84209333982.

It is a self number, because there is not a number n which added to its sum of digits gives 28933390248.

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 23 ways as a sum of consecutive naturals, for example, 390090 + ... + 458297.

It is an arithmetic number, because the mean of its divisors is an integer number (906714675).

Almost surely, 2^28933390248 is an apocalyptic number.

28933390248 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28933390248 is an abundant number, since it is smaller than the sum of its proper divisors (58111218552).

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

28933390248 is a wasteful number, since it uses less digits than its factorization.

28933390248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848439 (or 848428 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 51.

The spelling of 28933390248 in words is "twenty-eight billion, nine hundred thirty-three million, three hundred ninety thousand, two hundred forty-eight".