28863739508 has 24 divisors (see below), whose sum is σ = 53933466048. Its totient is φ = 13483362816.

The previous prime is 28863739481. The next prime is 28863739511. The reversal of 28863739508 is 80593736882.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3644141 + ... + 3652052.

It is an arithmetic number, because the mean of its divisors is an integer number (2247227752).

Almost surely, 2^28863739508 is an apocalyptic number.

It is an amenable number.

28863739508 is a deficient number, since it is larger than the sum of its proper divisors (25069726540).

28863739508 is a wasteful number, since it uses less digits than its factorization.

28863739508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296263 (or 7296261 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 28863739508 in words is "twenty-eight billion, eight hundred sixty-three million, seven hundred thirty-nine thousand, five hundred eight".