16939246247 has 12 divisors (see below), whose sum is σ = 21496187016. Its totient is φ = 13199412240.

The previous prime is 16939246217. The next prime is 16939246249. The reversal of 16939246247 is 74264293961.

It is not a de Polignac number, because 16939246247 - 2⁶ = 16939246183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16939246249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15713048 + ... + 15714125.

It is an arithmetic number, because the mean of its divisors is an integer number (1791348918).

Almost surely, 2^16939246247 is an apocalyptic number.

16939246247 is a deficient number, since it is larger than the sum of its proper divisors (4556940769).

16939246247 is a wasteful number, since it uses less digits than its factorization.

16939246247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31427198 (or 31427191 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 53.

The spelling of 16939246247 in words is "sixteen billion, nine hundred thirty-nine million, two hundred forty-six thousand, two hundred forty-seven".