171121682413450 has 96 divisors (see below), whose sum is σ = 336125308032000. Its totient is φ = 64635748174080.

The previous prime is 171121682413439. The next prime is 171121682413471. The reversal of 171121682413450 is 54314286121171.

171121682413450 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 171121682413450.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4952996776 + ... + 4953031324.

It is an arithmetic number, because the mean of its divisors is an integer number (3501305292000).

Almost surely, 2^{171121682413450} is an apocalyptic number.

171121682413450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

171121682413450 is a deficient number, since it is larger than the sum of its proper divisors (165003625618550).

171121682413450 is a wasteful number, since it uses less digits than its factorization.

171121682413450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51344 (or 51339 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The spelling of 171121682413450 in words is "one hundred seventy-one trillion, one hundred twenty-one billion, six hundred eighty-two million, four hundred thirteen thousand, four hundred fifty".