170351972089 has 8 divisors (see below), whose sum is σ = 185272367112. Its totient is φ = 155691062400.

The previous prime is 170351972059. The next prime is 170351972123. The reversal of 170351972089 is 980279153071.

It can be written as a sum of positive squares in 4 ways, for example, as 70058149225 + 100293822864 = 264685^2 + 316692^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-170351972089 is a prime.

It is a super-2 number, since 2×170351972089² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (170351972059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64869964 + ... + 64872589.

It is an arithmetic number, because the mean of its divisors is an integer number (23159045889).

Almost surely, 2^170351972089 is an apocalyptic number.

It is an amenable number.

170351972089 is a deficient number, since it is larger than the sum of its proper divisors (14920395023).

170351972089 is a wasteful number, since it uses less digits than its factorization.

170351972089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129742667.

The product of its (nonzero) digits is 952560, while the sum is 52.

The spelling of 170351972089 in words is "one hundred seventy billion, three hundred fifty-one million, nine hundred seventy-two thousand, eighty-nine".