180935243809 has 16 divisors (see below), whose sum is σ = 185555883456. Its totient is φ = 176374756800.

The previous prime is 180935243803. The next prime is 180935243837. The reversal of 180935243809 is 908342539081.

It is a cyclic number.

It is not a de Polignac number, because 180935243809 - 2²⁹ = 180398372897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (180935243803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6732619 + ... + 6759439.

It is an arithmetic number, because the mean of its divisors is an integer number (11597242716).

Almost surely, 2^180935243809 is an apocalyptic number.

It is an amenable number.

180935243809 is a deficient number, since it is larger than the sum of its proper divisors (4620639647).

180935243809 is a wasteful number, since it uses less digits than its factorization.

180935243809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27936.

The product of its (nonzero) digits is 1866240, while the sum is 52.

The spelling of 180935243809 in words is "one hundred eighty billion, nine hundred thirty-five million, two hundred forty-three thousand, eight hundred nine".