171896798121 has 8 divisors (see below), whose sum is σ = 229209264384. Its totient is φ = 114591098640.

The previous prime is 171896798057. The next prime is 171896798131. The reversal of 171896798121 is 121897698171.

171896798121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 171896798121 - 2⁶ = 171896798057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (171896798131) 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 7 ways as a sum of consecutive naturals, for example, 1632121 + ... + 1734246.

It is an arithmetic number, because the mean of its divisors is an integer number (28651158048).

Almost surely, 2^171896798121 is an apocalyptic number.

It is an amenable number.

171896798121 is a deficient number, since it is larger than the sum of its proper divisors (57312466263).

171896798121 is a wasteful number, since it uses less digits than its factorization.

171896798121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383391.

The product of its digits is 3048192, while the sum is 60.

The spelling of 171896798121 in words is "one hundred seventy-one billion, eight hundred ninety-six million, seven hundred ninety-eight thousand, one hundred twenty-one".