171981880094 has 32 divisors (see below), whose sum is σ = 275669892000. Its totient is φ = 80188057600.

The previous prime is 171981880093. The next prime is 171981880097. The reversal of 171981880094 is 490088189171.

171981880094 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (171981880093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1989137 + ... + 2073795.

It is an arithmetic number, because the mean of its divisors is an integer number (8614684125).

Almost surely, 2^171981880094 is an apocalyptic number.

171981880094 is a deficient number, since it is larger than the sum of its proper divisors (103688011906).

171981880094 is a wasteful number, since it uses less digits than its factorization.

171981880094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85228.

The product of its (nonzero) digits is 1161216, while the sum is 56.

The spelling of 171981880094 in words is "one hundred seventy-one billion, nine hundred eighty-one million, eight hundred eighty thousand, ninety-four".