13172389320347 has 4 divisors (see below), whose sum is σ = 13173705384840. Its totient is φ = 13171073255856.

The previous prime is 13172389320257. The next prime is 13172389320527. The reversal of 13172389320347 is 74302398327131.

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 13172389320347 - 2¹⁸ = 13172389058203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13172389320547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658017233 + ... + 658037250.

It is an arithmetic number, because the mean of its divisors is an integer number (3293426346210).

Almost surely, 2^{13172389320347} is an apocalyptic number.

13172389320347 is a deficient number, since it is larger than the sum of its proper divisors (1316064493).

13172389320347 is a wasteful number, since it uses less digits than its factorization.

13172389320347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1316064492.

The product of its (nonzero) digits is 4572288, while the sum is 53.

The spelling of 13172389320347 in words is "thirteen trillion, one hundred seventy-two billion, three hundred eighty-nine million, three hundred twenty thousand, three hundred forty-seven".