172305755865013 has 8 divisors (see below), whose sum is σ = 173180808345600. Its totient is φ = 171430707465360.

The previous prime is 172305755864969. The next prime is 172305755865029. The reversal of 172305755865013 is 310568557503271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 172305755865013 - 2²⁹ = 172305218994101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172305755865053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119982388 + ... + 121409986.

It is an arithmetic number, because the mean of its divisors is an integer number (21647601043200).

Almost surely, 2^{172305755865013} is an apocalyptic number.

It is an amenable number.

172305755865013 is a deficient number, since it is larger than the sum of its proper divisors (875052480587).

172305755865013 is a wasteful number, since it uses less digits than its factorization.

172305755865013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2040467.

The product of its (nonzero) digits is 26460000, while the sum is 58.

The spelling of 172305755865013 in words is "one hundred seventy-two trillion, three hundred five billion, seven hundred fifty-five million, eight hundred sixty-five thousand, thirteen".