181838383801 has 16 divisors (see below), whose sum is σ = 195196137984. Its totient is φ = 168988973824.

The previous prime is 181838383763. The next prime is 181838383861. The reversal of 181838383801 is 108383838181.

181838383801 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 181838383801 - 2⁹ = 181838383289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (181838383861) 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 15 ways as a sum of consecutive naturals, for example, 465820 + ... + 762013.

It is an arithmetic number, because the mean of its divisors is an integer number (12199758624).

Almost surely, 2^181838383801 is an apocalyptic number.

It is an amenable number.

181838383801 is a deficient number, since it is larger than the sum of its proper divisors (13357754183).

181838383801 is a wasteful number, since it uses less digits than its factorization.

181838383801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228040.

The product of its (nonzero) digits is 884736, while the sum is 52.

The spelling of 181838383801 in words is "one hundred eighty-one billion, eight hundred thirty-eight million, three hundred eighty-three thousand, eight hundred one".