173640890071323 has 12 divisors (see below), whose sum is σ = 250827427019520. Its totient is φ = 115754681983536.

The previous prime is 173640890071321. The next prime is 173640890071351. The reversal of 173640890071323 is 323170098046371.

173640890071323 is a `hidden beast` number, since 17 + 3 + 6 + 408 + 90 + 0 + 7 + 132 + 3 = 666.

It is not a de Polignac number, because 173640890071323 - 2¹ = 173640890071321 is a prime.

It is a super-2 number, since 2×173640890071323² (a number of 29 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 173640890071323.

It is not an unprimeable number, because it can be changed into a prime (173640890071321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 492430408 + ... + 492782901.

It is an arithmetic number, because the mean of its divisors is an integer number (20902285584960).

Almost surely, 2^{173640890071323} is an apocalyptic number.

173640890071323 is a deficient number, since it is larger than the sum of its proper divisors (77186536948197).

173640890071323 is a wasteful number, since it uses less digits than its factorization.

173640890071323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985232898 (or 985232895 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The spelling of 173640890071323 in words is "one hundred seventy-three trillion, six hundred forty billion, eight hundred ninety million, seventy-one thousand, three hundred twenty-three".