28963786938 has 16 divisors (see below), whose sum is σ = 59020547616. Its totient is φ = 9472433360.

The previous prime is 28963786933. The next prime is 28963786939. The reversal of 28963786938 is 83968736982.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28963786933) 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, 45540228 + ... + 45540863.

It is an arithmetic number, because the mean of its divisors is an integer number (3688784226).

Almost surely, 2^28963786938 is an apocalyptic number.

28963786938 is an abundant number, since it is smaller than the sum of its proper divisors (30056760678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28963786938 is a wasteful number, since it uses less digits than its factorization.

28963786938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91081149.

The product of its digits is 188116992, while the sum is 69.

The spelling of 28963786938 in words is "twenty-eight billion, nine hundred sixty-three million, seven hundred eighty-six thousand, nine hundred thirty-eight".