16939091773 has 4 divisors (see below), whose sum is σ = 17675574048. Its totient is φ = 16202609500.

The previous prime is 16939091761. The next prime is 16939091801. The reversal of 16939091773 is 37719093961.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16939091773 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 (16939091713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 368241103 + ... + 368241148.

It is an arithmetic number, because the mean of its divisors is an integer number (4418893512).

Almost surely, 2^16939091773 is an apocalyptic number.

It is an amenable number.

16939091773 is a deficient number, since it is larger than the sum of its proper divisors (736482275).

16939091773 is an equidigital number, since it uses as much as digits as its factorization.

16939091773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736482274.

The product of its (nonzero) digits is 1928934, while the sum is 55.

The spelling of 16939091773 in words is "sixteen billion, nine hundred thirty-nine million, ninety-one thousand, seven hundred seventy-three".