68571102108289 has 9 divisors (see below), whose sum is σ = 75371642108931. Its totient is φ = 62337282745320.

The previous prime is 68571102108287. The next prime is 68571102108323. The reversal of 68571102108289 is 98280120117586.

The square root of 68571102108289 is 8280767.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 6093270087025 + 62477832021264 = 2468455^2 + 7904292^2 .

It is not a de Polignac number, because 68571102108289 - 2¹ = 68571102108287 is a prime.

It is a super-2 number, since 2×68571102108289² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68571102108287) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 90712039 + ... + 91464835.

Almost surely, 2^{68571102108289} is an apocalyptic number.

68571102108289 is the 8280767-th square number.

68571102108289 is the 4140384-th centered octagonal number.

It is an amenable number.

68571102108289 is a deficient number, since it is larger than the sum of its proper divisors (6800540000642).

68571102108289 is an frugal number, since it uses more digits than its factorization.

68571102108289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505616 (or 752808 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 58.

The spelling of 68571102108289 in words is "sixty-eight trillion, five hundred seventy-one billion, one hundred two million, one hundred eight thousand, two hundred eighty-nine".