171572113464412 has 6 divisors (see below), whose sum is σ = 300251198562728. Its totient is φ = 85786056732204.

The previous prime is 171572113464383. The next prime is 171572113464431. The reversal of 171572113464412 is 214464311275171.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21446514183048 + ... + 21446514183055.

Almost surely, 2^{171572113464412} is an apocalyptic number.

It is an amenable number.

171572113464412 is a deficient number, since it is larger than the sum of its proper divisors (128679085098316).

171572113464412 is a wasteful number, since it uses less digits than its factorization.

171572113464412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42893028366107 (or 42893028366105 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 49.

The spelling of 171572113464412 in words is "one hundred seventy-one trillion, five hundred seventy-two billion, one hundred thirteen million, four hundred sixty-four thousand, four hundred twelve".