171941623238 has 64 divisors (see below), whose sum is σ = 325935042048. Its totient is φ = 66081899520.

The previous prime is 171941623237. The next prime is 171941623247. The reversal of 171941623238 is 832326149171.

It is a junction number, because it is equal to n+sod(n) for n = 171941623192 and 171941623201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171941623237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4567220 + ... + 4604712.

It is an arithmetic number, because the mean of its divisors is an integer number (5092735032).

Almost surely, 2^171941623238 is an apocalyptic number.

171941623238 is a deficient number, since it is larger than the sum of its proper divisors (153993418810).

171941623238 is a wasteful number, since it uses less digits than its factorization.

171941623238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37917.

The product of its digits is 435456, while the sum is 47.

The spelling of 171941623238 in words is "one hundred seventy-one billion, nine hundred forty-one million, six hundred twenty-three thousand, two hundred thirty-eight".