28185922282 has 16 divisors (see below), whose sum is σ = 48369448512. Its totient is φ = 12066999840.

The previous prime is 28185922277. The next prime is 28185922307. The reversal of 28185922282 is 28222958182.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1042944 + ... + 1069627.

It is an arithmetic number, because the mean of its divisors is an integer number (3023090532).

Almost surely, 2^28185922282 is an apocalyptic number.

28185922282 is a deficient number, since it is larger than the sum of its proper divisors (20183526230).

28185922282 is a wasteful number, since it uses less digits than its factorization.

28185922282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2113533.

The product of its digits is 737280, while the sum is 49.

The spelling of 28185922282 in words is "twenty-eight billion, one hundred eighty-five million, nine hundred twenty-two thousand, two hundred eighty-two".