16723783442 has 4 divisors (see below), whose sum is σ = 25085675166. Its totient is φ = 8361891720.

The previous prime is 16723783441. The next prime is 16723783477. The reversal of 16723783442 is 24438732761.

16723783442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24438732761 = 36191 ⋅675271.

It can be written as a sum of positive squares in only one way, i.e., 9485006881 + 7238776561 = 97391^2 + 85081^2 .

It is a super-2 number, since 2×16723783442² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16723783441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4180945859 + ... + 4180945862.

Almost surely, 2^16723783442 is an apocalyptic number.

16723783442 is a deficient number, since it is larger than the sum of its proper divisors (8361891724).

16723783442 is an equidigital number, since it uses as much as digits as its factorization.

16723783442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8361891723.

The product of its digits is 1354752, while the sum is 47.

The spelling of 16723783442 in words is "sixteen billion, seven hundred twenty-three million, seven hundred eighty-three thousand, four hundred forty-two".