90900099000909 has 32 divisors (see below), whose sum is σ = 150879771223680. Its totient is φ = 53602023974400.

The previous prime is 90900099000899. The next prime is 90900099001001.

90900099000909 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 90900099000909 - 2⁴¹ = 88701075745357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90900099000509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4135947652 + ... + 4135969629.

It is an arithmetic number, because the mean of its divisors is an integer number (4714992850740).

Almost surely, 2^{90900099000909} is an apocalyptic number.

90900099000909 is a gapful number since it is divisible by the number (99) formed by its first and last digit.

It is an amenable number.

90900099000909 is a deficient number, since it is larger than the sum of its proper divisors (59979672222771).

90900099000909 is a wasteful number, since it uses less digits than its factorization.

90900099000909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8271917338 (or 8271917332 counting only the distinct ones).

The product of its (nonzero) digits is 531441, while the sum is 54.

The spelling of 90900099000909 in words is "ninety trillion, nine hundred billion, ninety-nine million, nine hundred nine", and thus it is an aban number.