90733542577 has 2 divisors, whose sum is σ = 90733542578. Its totient is φ = 90733542576.

The previous prime is 90733542569. The next prime is 90733542583. The reversal of 90733542577 is 77524533709.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72029971456 + 18703571121 = 268384^2 + 136761^2 .

It is a cyclic number.

It is not a de Polignac number, because 90733542577 - 2³ = 90733542569 is a prime.

It is not a weakly prime, because it can be changed into another prime (90733542517) 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, 45366771288 + 45366771289.

It is an arithmetic number, because the mean of its divisors is an integer number (45366771289).

Almost surely, 2^90733542577 is an apocalyptic number.

It is an amenable number.

90733542577 is a deficient number, since it is larger than the sum of its proper divisors (1).

90733542577 is an equidigital number, since it uses as much as digits as its factorization.

90733542577 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5556600, while the sum is 52.

The spelling of 90733542577 in words is "ninety billion, seven hundred thirty-three million, five hundred forty-two thousand, five hundred seventy-seven".