28288770632 has 16 divisors (see below), whose sum is σ = 53054044800. Its totient is φ = 14141025360.

The previous prime is 28288770611. The next prime is 28288770647. The reversal of 28288770632 is 23607788282.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors.

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 3 ways as a sum of consecutive naturals, for example, 384032 + ... + 451727.

It is an arithmetic number, because the mean of its divisors is an integer number (3315877800).

Almost surely, 2^28288770632 is an apocalyptic number.

It is an amenable number.

28288770632 is a deficient number, since it is larger than the sum of its proper divisors (24765274168).

28288770632 is a wasteful number, since it uses less digits than its factorization.

28288770632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839996 (or 839992 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 53.

The spelling of 28288770632 in words is "twenty-eight billion, two hundred eighty-eight million, seven hundred seventy thousand, six hundred thirty-two".