171932971048 has 16 divisors (see below), whose sum is σ = 322537248000. Its totient is φ = 85923038256.

The previous prime is 171932971039. The next prime is 171932971061. The reversal of 171932971048 is 840179239171.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 171932970986 and 171932971004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5414088 + ... + 5445751.

It is an arithmetic number, because the mean of its divisors is an integer number (20158578000).

Almost surely, 2^171932971048 is an apocalyptic number.

It is an amenable number.

171932971048 is a deficient number, since it is larger than the sum of its proper divisors (150604276952).

171932971048 is a wasteful number, since it uses less digits than its factorization.

171932971048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10861824 (or 10861820 counting only the distinct ones).

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 171932971048 in words is "one hundred seventy-one billion, nine hundred thirty-two million, nine hundred seventy-one thousand, forty-eight".