170321840649089 has 2 divisors, whose sum is σ = 170321840649090. Its totient is φ = 170321840649088.

The previous prime is 170321840649073. The next prime is 170321840649097. The reversal of 170321840649089 is 980946048123071.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114882126382864 + 55439714266225 = 10718308^2 + 7445785^2 .

It is a cyclic number.

It is not a de Polignac number, because 170321840649089 - 2⁴ = 170321840649073 is a prime.

It is not a weakly prime, because it can be changed into another prime (170321840049089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85160920324544 + 85160920324545.

It is an arithmetic number, because the mean of its divisors is an integer number (85160920324545).

Almost surely, 2^{170321840649089} is an apocalyptic number.

It is an amenable number.

170321840649089 is a deficient number, since it is larger than the sum of its proper divisors (1).

170321840649089 is an equidigital number, since it uses as much as digits as its factorization.

170321840649089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 170321840649089 in words is "one hundred seventy trillion, three hundred twenty-one billion, eight hundred forty million, six hundred forty-nine thousand, eighty-nine".