325173438638 has 16 divisors (see below), whose sum is σ = 493745725440. Its totient is φ = 160595271936.

The previous prime is 325173438637. The next prime is 325173438673. The reversal of 325173438638 is 836834371523.

It is a super-3 number, since 3×325173438638³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 325173438638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (325173438637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761006 + ... + 1108817.

It is an arithmetic number, because the mean of its divisors is an integer number (30859107840).

Almost surely, 2^325173438638 is an apocalyptic number.

325173438638 is a deficient number, since it is larger than the sum of its proper divisors (168572286802).

325173438638 is a wasteful number, since it uses less digits than its factorization.

325173438638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870891.

The product of its digits is 8709120, while the sum is 53.

The spelling of 325173438638 in words is "three hundred twenty-five billion, one hundred seventy-three million, four hundred thirty-eight thousand, six hundred thirty-eight".