990209010901 has 8 divisors (see below), whose sum is σ = 1093242808224. Its totient is φ = 889344346320.

The previous prime is 990209010871. The next prime is 990209010907. The reversal of 990209010901 is 109010902099.

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 990209010901 - 2³⁷ = 852770057429 is a prime.

It is a super-3 number, since 3×990209010901³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990209010907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542282226 + ... + 542284051.

It is an arithmetic number, because the mean of its divisors is an integer number (136655351028).

Almost surely, 2^990209010901 is an apocalyptic number.

It is an amenable number.

990209010901 is a deficient number, since it is larger than the sum of its proper divisors (103033797323).

990209010901 is a wasteful number, since it uses less digits than its factorization.

990209010901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1084566371.

The product of its (nonzero) digits is 13122, while the sum is 40.

The spelling of 990209010901 in words is "nine hundred ninety billion, two hundred nine million, ten thousand, nine hundred one".