28317750064 has 40 divisors (see below), whose sum is σ = 55440348912. Its totient is φ = 14011315200.

The previous prime is 28317750049. The next prime is 28317750101. The reversal of 28317750064 is 46005771382.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 28317750064.

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, 584364 + ... + 630964.

Almost surely, 2^28317750064 is an apocalyptic number.

It is an amenable number.

28317750064 is a deficient number, since it is larger than the sum of its proper divisors (27122598848).

28317750064 is a wasteful number, since it uses less digits than its factorization.

28317750064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47005 (or 46999 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 43.

The spelling of 28317750064 in words is "twenty-eight billion, three hundred seventeen million, seven hundred fifty thousand, sixty-four".