90813143294773 has 2 divisors, whose sum is σ = 90813143294774. Its totient is φ = 90813143294772.

The previous prime is 90813143294771. The next prime is 90813143294813. The reversal of 90813143294773 is 37749234131809.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51112533385809 + 39700609908964 = 7149303^2 + 6300842^2 .

It is a cyclic number.

It is not a de Polignac number, because 90813143294773 - 2¹ = 90813143294771 is a prime.

Together with 90813143294771, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90813143294771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45406571647386 + 45406571647387.

It is an arithmetic number, because the mean of its divisors is an integer number (45406571647387).

Almost surely, 2^{90813143294773} is an apocalyptic number.

It is an amenable number.

90813143294773 is a deficient number, since it is larger than the sum of its proper divisors (1).

90813143294773 is an equidigital number, since it uses as much as digits as its factorization.

90813143294773 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27433728, while the sum is 61.

The spelling of 90813143294773 in words is "ninety trillion, eight hundred thirteen billion, one hundred forty-three million, two hundred ninety-four thousand, seven hundred seventy-three".