90804808345 has 8 divisors (see below), whose sum is σ = 108968198976. Its totient is φ = 72642227376.

The previous prime is 90804808313. The next prime is 90804808351. The reversal of 90804808345 is 54380840809.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90804808345 - 2⁵ = 90804808313 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 80194 + ... + 433636.

It is an arithmetic number, because the mean of its divisors is an integer number (13621024872).

Almost surely, 2^90804808345 is an apocalyptic number.

It is an amenable number.

90804808345 is a deficient number, since it is larger than the sum of its proper divisors (18163390631).

90804808345 is a wasteful number, since it uses less digits than its factorization.

90804808345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404831.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 90804808345 in words is "ninety billion, eight hundred four million, eight hundred eight thousand, three hundred forty-five".