18040263326 has 8 divisors (see below), whose sum is σ = 27211570920. Its totient is φ = 8969739688.

The previous prime is 18040263253. The next prime is 18040263341. The reversal of 18040263326 is 62336204081.

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

It is a super-2 number, since 2×18040263326² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25195541 + ... + 25196256.

It is an arithmetic number, because the mean of its divisors is an integer number (3401446365).

Almost surely, 2^18040263326 is an apocalyptic number.

18040263326 is a deficient number, since it is larger than the sum of its proper divisors (9171307594).

18040263326 is a wasteful number, since it uses less digits than its factorization.

18040263326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50391978.

The product of its (nonzero) digits is 41472, while the sum is 35.

The spelling of 18040263326 in words is "eighteen billion, forty million, two hundred sixty-three thousand, three hundred twenty-six".