1603920472339 has 4 divisors (see below), whose sum is σ = 1603929090456. Its totient is φ = 1603911854224.

The previous prime is 1603920472291. The next prime is 1603920472351. The reversal of 1603920472339 is 9332740293061.

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 1603920472339 - 2²⁹ = 1603383601427 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1603920472292 and 1603920472301.

It is not an unprimeable number, because it can be changed into a prime (1603920472379) 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, 4023589 + ... + 4404214.

It is an arithmetic number, because the mean of its divisors is an integer number (400982272614).

Almost surely, 2^{1603920472339} is an apocalyptic number.

1603920472339 is a deficient number, since it is larger than the sum of its proper divisors (8618117).

1603920472339 is an equidigital number, since it uses as much as digits as its factorization.

1603920472339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8618116.

The product of its (nonzero) digits is 1469664, while the sum is 49.

The spelling of 1603920472339 in words is "one trillion, six hundred three billion, nine hundred twenty million, four hundred seventy-two thousand, three hundred thirty-nine".