16868340939776 has 44 divisors (see below), whose sum is σ = 33861298121760. Its totient is φ = 8398880931840.

The previous prime is 16868340939743. The next prime is 16868340939787. The reversal of 16868340939776 is 67793904386861.

It is a junction number, because it is equal to n+sod(n) for n = 16868340939697 and 16868340939706.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 34217585 + ... + 34707056.

Almost surely, 2^{16868340939776} is an apocalyptic number.

16868340939776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16868340939776 is an abundant number, since it is smaller than the sum of its proper divisors (16992957181984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16868340939776 is an equidigital number, since it uses as much as digits as its factorization.

16868340939776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68924900 (or 68924882 counting only the distinct ones).

The product of its (nonzero) digits is 1975228416, while the sum is 77.

The spelling of 16868340939776 in words is "sixteen trillion, eight hundred sixty-eight billion, three hundred forty million, nine hundred thirty-nine thousand, seven hundred seventy-six".