14728709985 has 64 divisors (see below), whose sum is σ = 28404172800. Its totient is φ = 6428871680.

The previous prime is 14728709899. The next prime is 14728710067. The reversal of 14728709985 is 58990782741.

It is not a de Polignac number, because 14728709985 - 2⁷ = 14728709857 is a prime.

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 63 ways as a sum of consecutive naturals, for example, 49635 + ... + 178664.

It is an arithmetic number, because the mean of its divisors is an integer number (443815200).

Almost surely, 2^14728709985 is an apocalyptic number.

14728709985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

14728709985 is a deficient number, since it is larger than the sum of its proper divisors (13675462815).

14728709985 is a wasteful number, since it uses less digits than its factorization.

14728709985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228358.

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 14728709985 in words is "fourteen billion, seven hundred twenty-eight million, seven hundred nine thousand, nine hundred eighty-five".