90608167289 has 2 divisors, whose sum is σ = 90608167290. Its totient is φ = 90608167288.

The previous prime is 90608167241. The next prime is 90608167343. The reversal of 90608167289 is 98276180609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72522490000 + 18085677289 = 269300^2 + 134483^2 .

It is an emirp because it is prime and its reverse (98276180609) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90608167289 - 2²⁰ = 90607118713 is a prime.

It is not a weakly prime, because it can be changed into another prime (90608166289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45304083644 + 45304083645.

It is an arithmetic number, because the mean of its divisors is an integer number (45304083645).

Almost surely, 2^90608167289 is an apocalyptic number.

It is an amenable number.

90608167289 is a deficient number, since it is larger than the sum of its proper divisors (1).

90608167289 is an equidigital number, since it uses as much as digits as its factorization.

90608167289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2612736, while the sum is 56.

The spelling of 90608167289 in words is "ninety billion, six hundred eight million, one hundred sixty-seven thousand, two hundred eighty-nine".