90804808351 has 2 divisors, whose sum is σ = 90804808352. Its totient is φ = 90804808350.

The previous prime is 90804808313. The next prime is 90804808361. The reversal of 90804808351 is 15380840809.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90804808351 - 2⁹ = 90804807839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90804808361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45402404175 + 45402404176.

It is an arithmetic number, because the mean of its divisors is an integer number (45402404176).

Almost surely, 2^90804808351 is an apocalyptic number.

90804808351 is a deficient number, since it is larger than the sum of its proper divisors (1).

90804808351 is an equidigital number, since it uses as much as digits as its factorization.

90804808351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 276480, while the sum is 46.

The spelling of 90804808351 in words is "ninety billion, eight hundred four million, eight hundred eight thousand, three hundred fifty-one".