18080509733 has 8 divisors (see below), whose sum is σ = 21241438176. Its totient is φ = 15172455600.

The previous prime is 18080509721. The next prime is 18080509807. The reversal of 18080509733 is 33790508081.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 18080509733 - 2²² = 18076315429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18080509033) 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 7 ways as a sum of consecutive naturals, for example, 63218423 + ... + 63218708.

It is an arithmetic number, because the mean of its divisors is an integer number (2655179772).

Almost surely, 2^18080509733 is an apocalyptic number.

18080509733 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18080509733 is a deficient number, since it is larger than the sum of its proper divisors (3160928443).

18080509733 is a wasteful number, since it uses less digits than its factorization.

18080509733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126437155.

The product of its (nonzero) digits is 181440, while the sum is 44.

The spelling of 18080509733 in words is "eighteen billion, eighty million, five hundred nine thousand, seven hundred thirty-three".