18023022094609 has 27 divisors (see below), whose sum is σ = 21370464114363. Its totient is φ = 15155502656112.

The previous prime is 18023022094603. The next prime is 18023022094621. The reversal of 18023022094609 is 90649022032081.

The square root of 18023022094609 is 4245353.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12992744657025 + 5030277437584 = 3604545^2 + 2242828^2 .

It is not a de Polignac number, because 18023022094609 - 2⁵ = 18023022094577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18023022094603) 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 in 26 ways as a sum of consecutive naturals, for example, 1575020242 + ... + 1575031684.

Almost surely, 2^{18023022094609} is an apocalyptic number.

18023022094609 is the 4245353-rd square number.

18023022094609 is the 2122677-th centered octagonal number.

It is an amenable number.

18023022094609 is a deficient number, since it is larger than the sum of its proper divisors (3347442019754).

18023022094609 is an frugal number, since it uses more digits than its factorization.

18023022094609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23006 (or 11503 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 18023022094609 in words is "eighteen trillion, twenty-three billion, twenty-two million, ninety-four thousand, six hundred nine".