90233833209 has 16 divisors (see below), whose sum is σ = 129585153600. Its totient is φ = 55520531136.

The previous prime is 90233833133. The next prime is 90233833279.

90233833209 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 90233833209 - 2¹⁷ = 90233702137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90233833279) 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 in 15 ways as a sum of consecutive naturals, for example, 114522 + ... + 439980.

It is an arithmetic number, because the mean of its divisors is an integer number (8099072100).

Almost surely, 2^90233833209 is an apocalyptic number.

It is an amenable number.

90233833209 is a deficient number, since it is larger than the sum of its proper divisors (39351320391).

90233833209 is a wasteful number, since it uses less digits than its factorization.

90233833209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 332584.

The product of its (nonzero) digits is 209952, while the sum is 42.

The spelling of 90233833209 in words is "ninety billion, two hundred thirty-three million, eight hundred thirty-three thousand, two hundred nine".