13073378309 has 4 divisors (see below), whose sum is σ = 13200304416. Its totient is φ = 12946452204.

The previous prime is 13073378291. The next prime is 13073378323. The reversal of 13073378309 is 90387337031.

It is a happy number.

13073378309 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90387337031 = 241 ⋅375051191.

It is a cyclic number.

It is not a de Polignac number, because 13073378309 - 2²⁴ = 13056601093 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 13073378309.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13073378009) 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 in 3 ways as a sum of consecutive naturals, for example, 63462899 + ... + 63463104.

It is an arithmetic number, because the mean of its divisors is an integer number (3300076104).

Almost surely, 2^13073378309 is an apocalyptic number.

It is an amenable number.

13073378309 is a deficient number, since it is larger than the sum of its proper divisors (126926107).

13073378309 is a wasteful number, since it uses less digits than its factorization.

13073378309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126926106.

The product of its (nonzero) digits is 285768, while the sum is 44.

The spelling of 13073378309 in words is "thirteen billion, seventy-three million, three hundred seventy-eight thousand, three hundred nine".