320405139022249 has 16 divisors (see below), whose sum is σ = 340508707753984. Its totient is φ = 301000542771600.

The previous prime is 320405139022237. The next prime is 320405139022259. The reversal of 320405139022249 is 942220931504023.

It is a cyclic number.

It is not a de Polignac number, because 320405139022249 - 2³¹ = 320402991538601 is a prime.

It is a super-2 number, since 2×320405139022249² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 320405139022199 and 320405139022208.

It is not an unprimeable number, because it can be changed into a prime (320405139022219) 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 15 ways as a sum of consecutive naturals, for example, 737095437 + ... + 737529994.

It is an arithmetic number, because the mean of its divisors is an integer number (21281794234624).

Almost surely, 2^{320405139022249} is an apocalyptic number.

It is an amenable number.

320405139022249 is a deficient number, since it is larger than the sum of its proper divisors (20103568731735).

320405139022249 is a wasteful number, since it uses less digits than its factorization.

320405139022249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474625668.

The product of its (nonzero) digits is 933120, while the sum is 46.

The spelling of 320405139022249 in words is "three hundred twenty trillion, four hundred five billion, one hundred thirty-nine million, twenty-two thousand, two hundred forty-nine".