90143826647593 has 2 divisors, whose sum is σ = 90143826647594. Its totient is φ = 90143826647592.

The previous prime is 90143826647519. The next prime is 90143826647603. The reversal of 90143826647593 is 39574662834109.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90141295752729 + 2530894864 = 9494277^2 + 50308^2 .

It is a cyclic number.

It is not a de Polignac number, because 90143826647593 - 2²⁹ = 90143289776681 is a prime.

It is not a weakly prime, because it can be changed into another prime (90143826647293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45071913323796 + 45071913323797.

It is an arithmetic number, because the mean of its divisors is an integer number (45071913323797).

It is a 1-persistent number, because it is pandigital, but 2⋅90143826647593 = 180287653295186 is not.

Almost surely, 2^{90143826647593} is an apocalyptic number.

It is an amenable number.

90143826647593 is a deficient number, since it is larger than the sum of its proper divisors (1).

90143826647593 is an equidigital number, since it uses as much as digits as its factorization.

90143826647593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 235146240, while the sum is 67.

The spelling of 90143826647593 in words is "ninety trillion, one hundred forty-three billion, eight hundred twenty-six million, six hundred forty-seven thousand, five hundred ninety-three".