28686049983 has 48 divisors (see below), whose sum is σ = 43643059200. Its totient is φ = 18139625280.

The previous prime is 28686049967. The next prime is 28686050009. The reversal of 28686049983 is 38994068682.

28686049983 is a `hidden beast` number, since 2 + 8 + 6 + 8 + 60 + 499 + 83 = 666.

It is not a de Polignac number, because 28686049983 - 2⁴ = 28686049967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28686049983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28686039983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1763853 + ... + 1780041.

It is an arithmetic number, because the mean of its divisors is an integer number (909230400).

Almost surely, 2^28686049983 is an apocalyptic number.

28686049983 is a deficient number, since it is larger than the sum of its proper divisors (14957009217).

28686049983 is a wasteful number, since it uses less digits than its factorization.

28686049983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16372 (or 16369 counting only the distinct ones).

The product of its (nonzero) digits is 35831808, while the sum is 63.

The spelling of 28686049983 in words is "twenty-eight billion, six hundred eighty-six million, forty-nine thousand, nine hundred eighty-three".