172241326385 has 16 divisors (see below), whose sum is σ = 210935638080. Its totient is φ = 134978871360.

The previous prime is 172241326343. The next prime is 172241326403. The reversal of 172241326385 is 583623142271.

It is not a de Polignac number, because 172241326385 - 2¹⁸ = 172241064241 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948086 + ... + 1115055.

It is an arithmetic number, because the mean of its divisors is an integer number (13183477380).

Almost surely, 2^172241326385 is an apocalyptic number.

It is an amenable number.

172241326385 is a deficient number, since it is larger than the sum of its proper divisors (38694311695).

172241326385 is a wasteful number, since it uses less digits than its factorization.

172241326385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2063488.

The product of its digits is 483840, while the sum is 44.

The spelling of 172241326385 in words is "one hundred seventy-two billion, two hundred forty-one million, three hundred twenty-six thousand, three hundred eighty-five".