170534085893 has 2 divisors, whose sum is σ = 170534085894. Its totient is φ = 170534085892.

The previous prime is 170534085881. The next prime is 170534085961. The reversal of 170534085893 is 398580435071.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170237109604 + 296976289 = 412598^2 + 17233^2 .

It is a cyclic number.

It is not a de Polignac number, because 170534085893 - 2⁶ = 170534085829 is a prime.

It is a super-2 number, since 2×170534085893² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (170234085893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 85267042946 + 85267042947.

It is an arithmetic number, because the mean of its divisors is an integer number (85267042947).

Almost surely, 2^170534085893 is an apocalyptic number.

It is an amenable number.

170534085893 is a deficient number, since it is larger than the sum of its proper divisors (1).

170534085893 is an equidigital number, since it uses as much as digits as its factorization.

170534085893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 170534085893 in words is "one hundred seventy billion, five hundred thirty-four million, eighty-five thousand, eight hundred ninety-three".