28012128082 has 16 divisors (see below), whose sum is σ = 42333668352. Its totient is φ = 13901068800.

The previous prime is 28012128073. The next prime is 28012128083. The reversal of 28012128082 is 28082121082.

It is not an unprimeable number, because it can be changed into a prime (28012128083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307983 + ... + 388429.

It is an arithmetic number, because the mean of its divisors is an integer number (2645854272).

Almost surely, 2^28012128082 is an apocalyptic number.

28012128082 is a deficient number, since it is larger than the sum of its proper divisors (14321540270).

28012128082 is a wasteful number, since it uses less digits than its factorization.

28012128082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81753.

The product of its (nonzero) digits is 8192, while the sum is 34.

The spelling of 28012128082 in words is "twenty-eight billion, twelve million, one hundred twenty-eight thousand, eighty-two".