28605248850 has 48 divisors (see below), whose sum is σ = 70958592288. Its totient is φ = 7626176640.

The previous prime is 28605248797. The next prime is 28605248851. The reversal of 28605248850 is 5884250682.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 28605248850.

It is not an unprimeable number, because it can be changed into a prime (28605248851) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 647157 + ... + 689943.

It is an arithmetic number, because the mean of its divisors is an integer number (1478304006).

Almost surely, 2^28605248850 is an apocalyptic number.

28605248850 is an abundant number, since it is smaller than the sum of its proper divisors (42353343438).

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

28605248850 is a wasteful number, since it uses less digits than its factorization.

28605248850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47259 (or 47254 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 48.

The spelling of 28605248850 in words is "twenty-eight billion, six hundred five million, two hundred forty-eight thousand, eight hundred fifty".