90160873813 has 2 divisors, whose sum is σ = 90160873814. Its totient is φ = 90160873812.

The previous prime is 90160873783. The next prime is 90160873861. The reversal of 90160873813 is 31837806109.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50896262404 + 39264611409 = 225602^2 + 198153^2 .

It is a cyclic number.

It is not a de Polignac number, because 90160873813 - 2⁹ = 90160873301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90160873883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45080436906 + 45080436907.

It is an arithmetic number, because the mean of its divisors is an integer number (45080436907).

Almost surely, 2^90160873813 is an apocalyptic number.

It is an amenable number.

90160873813 is a deficient number, since it is larger than the sum of its proper divisors (1).

90160873813 is an equidigital number, since it uses as much as digits as its factorization.

90160873813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 90160873813 in words is "ninety billion, one hundred sixty million, eight hundred seventy-three thousand, eight hundred thirteen".