673353036403 has 16 divisors (see below), whose sum is σ = 696536064000. Its totient is φ = 650542662432.

The previous prime is 673353036383. The next prime is 673353036439. The reversal of 673353036403 is 304630353376.

It is a cyclic number.

It is not a de Polignac number, because 673353036403 - 2⁵ = 673353036371 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 673353036403.

It is not an unprimeable number, because it can be changed into a prime (673353036493) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19695238 + ... + 19729396.

It is an arithmetic number, because the mean of its divisors is an integer number (43533504000).

Almost surely, 2^673353036403 is an apocalyptic number.

673353036403 is a deficient number, since it is larger than the sum of its proper divisors (23183027597).

673353036403 is a wasteful number, since it uses less digits than its factorization.

673353036403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39594.

The product of its (nonzero) digits is 1224720, while the sum is 43.

Adding to 673353036403 its reverse (304630353376), we get a palindrome (977983389779).

The spelling of 673353036403 in words is "six hundred seventy-three billion, three hundred fifty-three million, thirty-six thousand, four hundred three".