16286789905 has 32 divisors (see below), whose sum is σ = 21436410240. Its totient is φ = 11824081920.

The previous prime is 16286789899. The next prime is 16286789927. The reversal of 16286789905 is 50998768261.

It is not a de Polignac number, because 16286789905 - 2¹¹ = 16286787857 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1995042 + ... + 2003188.

It is an arithmetic number, because the mean of its divisors is an integer number (669887820).

Almost surely, 2^16286789905 is an apocalyptic number.

It is an amenable number.

16286789905 is a deficient number, since it is larger than the sum of its proper divisors (5149620335).

16286789905 is a wasteful number, since it uses less digits than its factorization.

16286789905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9009.

The product of its (nonzero) digits is 13063680, while the sum is 61.

The spelling of 16286789905 in words is "sixteen billion, two hundred eighty-six million, seven hundred eighty-nine thousand, nine hundred five".