28688088286 has 32 divisors (see below), whose sum is σ = 50603416416. Its totient is φ = 12025488000.

The previous prime is 28688088281. The next prime is 28688088313. The reversal of 28688088286 is 68288088682.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28688088281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 256176 + ... + 350716.

It is an arithmetic number, because the mean of its divisors is an integer number (1581356763).

Almost surely, 2^28688088286 is an apocalyptic number.

28688088286 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28688088286 is a deficient number, since it is larger than the sum of its proper divisors (21915328130).

28688088286 is a wasteful number, since it uses less digits than its factorization.

28688088286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95628.

The product of its (nonzero) digits is 37748736, while the sum is 64.

The spelling of 28688088286 in words is "twenty-eight billion, six hundred eighty-eight million, eighty-eight thousand, two hundred eighty-six".