8905165189 has 2 divisors, whose sum is σ = 8905165190. Its totient is φ = 8905165188.

The previous prime is 8905165163. The next prime is 8905165207. The reversal of 8905165189 is 9815615098.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7771832964 + 1133332225 = 88158^2 + 33665^2 .

It is a cyclic number.

It is not a de Polignac number, because 8905165189 - 2²¹ = 8903068037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8905165889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4452582594 + 4452582595.

It is an arithmetic number, because the mean of its divisors is an integer number (4452582595).

Almost surely, 2^8905165189 is an apocalyptic number.

It is an amenable number.

8905165189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8905165189 is an equidigital number, since it uses as much as digits as its factorization.

8905165189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 777600, while the sum is 52.

The square root of 8905165189 is about 94367.1827967753. The cubic root of 8905165189 is about 2072.7519225922.

The spelling of 8905165189 in words is "eight billion, nine hundred five million, one hundred sixty-five thousand, one hundred eighty-nine".