16938004445 has 8 divisors (see below), whose sum is σ = 20330552760. Its totient is φ = 13547105280.

The previous prime is 16938004441. The next prime is 16938004481. The reversal of 16938004445 is 54440083961.

It can be written as a sum of positive squares in 4 ways, for example, as 2105401 + 16935899044 = 1451^2 + 130138^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16938004445 - 2² = 16938004441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16938004396 and 16938004405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16938004441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389576 + ... + 430865.

It is an arithmetic number, because the mean of its divisors is an integer number (2541319095).

Almost surely, 2^16938004445 is an apocalyptic number.

It is an amenable number.

16938004445 is a deficient number, since it is larger than the sum of its proper divisors (3392548315).

16938004445 is an equidigital number, since it uses as much as digits as its factorization.

16938004445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 824575.

The product of its (nonzero) digits is 414720, while the sum is 44.

The spelling of 16938004445 in words is "sixteen billion, nine hundred thirty-eight million, four thousand, four hundred forty-five".