223532349809 has 2 divisors, whose sum is σ = 223532349810. Its totient is φ = 223532349808.

The previous prime is 223532349797. The next prime is 223532349841. The reversal of 223532349809 is 908943235322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137119868209 + 86412481600 = 370297^2 + 293960^2 .

It is a cyclic number.

It is not a de Polignac number, because 223532349809 - 2⁴ = 223532349793 is a prime.

It is a super-2 number, since 2×223532349809² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (223532349889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111766174904 + 111766174905.

It is an arithmetic number, because the mean of its divisors is an integer number (111766174905).

Almost surely, 2^223532349809 is an apocalyptic number.

It is an amenable number.

223532349809 is a deficient number, since it is larger than the sum of its proper divisors (1).

223532349809 is an equidigital number, since it uses as much as digits as its factorization.

223532349809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 50.

The spelling of 223532349809 in words is "two hundred twenty-three billion, five hundred thirty-two million, three hundred forty-nine thousand, eight hundred nine".