16939209712 has 20 divisors (see below), whose sum is σ = 33215139720. Its totient is φ = 8367560768.

The previous prime is 16939209673. The next prime is 16939209713. The reversal of 16939209712 is 21790293961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16939209713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6376387 + ... + 6379042.

It is an arithmetic number, because the mean of its divisors is an integer number (1660756986).

Almost surely, 2^16939209712 is an apocalyptic number.

It is an amenable number.

16939209712 is a deficient number, since it is larger than the sum of its proper divisors (16275930008).

16939209712 is a wasteful number, since it uses less digits than its factorization.

16939209712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12755520 (or 12755514 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 49.

The spelling of 16939209712 in words is "sixteen billion, nine hundred thirty-nine million, two hundred nine thousand, seven hundred twelve".