16944915839 has 4 divisors (see below), whose sum is σ = 16945904400. Its totient is φ = 16943927280.

The previous prime is 16944915809. The next prime is 16944915899. The reversal of 16944915839 is 93851944961.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16944915839 - 2¹² = 16944911743 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 (16944915809) 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, 468107 + ... + 503004.

It is an arithmetic number, because the mean of its divisors is an integer number (4236476100).

Almost surely, 2^16944915839 is an apocalyptic number.

16944915839 is a deficient number, since it is larger than the sum of its proper divisors (988561).

16944915839 is an equidigital number, since it uses as much as digits as its factorization.

16944915839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988560.

The product of its digits is 8398080, while the sum is 59.

The spelling of 16944915839 in words is "sixteen billion, nine hundred forty-four million, nine hundred fifteen thousand, eight hundred thirty-nine".