172342222408225 has 72 divisors (see below), whose sum is σ = 225687878604864. Its totient is φ = 130454382528000.

The previous prime is 172342222408219. The next prime is 172342222408259. The reversal of 172342222408225 is 522804222243271.

It is a happy number.

It is not a de Polignac number, because 172342222408225 - 2¹¹ = 172342222406177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 483403482 + ... + 483759868.

It is an arithmetic number, because the mean of its divisors is an integer number (3134553869512).

Almost surely, 2^{172342222408225} is an apocalyptic number.

It is an amenable number.

172342222408225 is a deficient number, since it is larger than the sum of its proper divisors (53345656196639).

172342222408225 is a wasteful number, since it uses less digits than its factorization.

172342222408225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356827 (or 356781 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 46.

The spelling of 172342222408225 in words is "one hundred seventy-two trillion, three hundred forty-two billion, two hundred twenty-two million, four hundred eight thousand, two hundred twenty-five".