172342243239 has 16 divisors (see below), whose sum is σ = 241916496000. Its totient is φ = 108833042016.

The previous prime is 172342243237. The next prime is 172342243243. The reversal of 172342243239 is 932342243271.

172342243239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 172342243239 - 2¹ = 172342243237 is a prime.

It is a super-2 number, since 2×172342243239² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 172342243239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172342243237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230032 + ... + 630554.

It is an arithmetic number, because the mean of its divisors is an integer number (15119781000).

Almost surely, 2^172342243239 is an apocalyptic number.

172342243239 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

172342243239 is a deficient number, since it is larger than the sum of its proper divisors (69574252761).

172342243239 is a wasteful number, since it uses less digits than its factorization.

172342243239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408094.

The product of its digits is 435456, while the sum is 42.

The spelling of 172342243239 in words is "one hundred seventy-two billion, three hundred forty-two million, two hundred forty-three thousand, two hundred thirty-nine".