16939316317 has 24 divisors (see below), whose sum is σ = 21790795392. Its totient is φ = 13018622400.

The previous prime is 16939316309. The next prime is 16939316321. The reversal of 16939316317 is 71361393961.

It is a happy number.

It is not a de Polignac number, because 16939316317 - 2³ = 16939316309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16939316347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 175909 + ... + 254602.

It is an arithmetic number, because the mean of its divisors is an integer number (907949808).

Almost surely, 2^16939316317 is an apocalyptic number.

It is an amenable number.

16939316317 is a deficient number, since it is larger than the sum of its proper divisors (4851479075).

16939316317 is a wasteful number, since it uses less digits than its factorization.

16939316317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430609 (or 430602 counting only the distinct ones).

The product of its digits is 551124, while the sum is 49.

The spelling of 16939316317 in words is "sixteen billion, nine hundred thirty-nine million, three hundred sixteen thousand, three hundred seventeen".