16987831284850 has 24 divisors (see below), whose sum is σ = 31668692114160. Its totient is φ = 6779793605520.

The previous prime is 16987831284799. The next prime is 16987831284857. The reversal of 16987831284850 is 5848213878961.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 16987831284850.

It is not an unprimeable number, because it can be changed into a prime (16987831284857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383450340 + ... + 383494639.

It is an arithmetic number, because the mean of its divisors is an integer number (1319528838090).

It is a 1-persistent number, because it is pandigital, but 2⋅16987831284850 = 33975662569700 is not.

Almost surely, 2^{16987831284850} is an apocalyptic number.

16987831284850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16987831284850 is a deficient number, since it is larger than the sum of its proper divisors (14680860829310).

16987831284850 is a wasteful number, since it uses less digits than its factorization.

16987831284850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766945434 (or 766945429 counting only the distinct ones).

The product of its (nonzero) digits is 185794560, while the sum is 70.

The spelling of 16987831284850 in words is "sixteen trillion, nine hundred eighty-seven billion, eight hundred thirty-one million, two hundred eighty-four thousand, eight hundred fifty".