90479330009 has 2 divisors, whose sum is σ = 90479330010. Its totient is φ = 90479330008.

The previous prime is 90479329951. The next prime is 90479330023. The reversal of 90479330009 is 90003397409.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52625736409 + 37853593600 = 229403^2 + 194560^2 .

It is an emirp because it is prime and its reverse (90003397409) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90479330009 - 2³² = 86184362713 is a prime.

It is not a weakly prime, because it can be changed into another prime (90479330069) 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, 45239665004 + 45239665005.

It is an arithmetic number, because the mean of its divisors is an integer number (45239665005).

Almost surely, 2^90479330009 is an apocalyptic number.

It is an amenable number.

90479330009 is a deficient number, since it is larger than the sum of its proper divisors (1).

90479330009 is an equidigital number, since it uses as much as digits as its factorization.

90479330009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 44.

The spelling of 90479330009 in words is "ninety billion, four hundred seventy-nine million, three hundred thirty thousand, nine".