18103227293 has 8 divisors (see below), whose sum is σ = 18729328800. Its totient is φ = 17477249328.

The previous prime is 18103227239. The next prime is 18103227347. The reversal of 18103227293 is 39272230181.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (18103227239) and next prime (18103227347).

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 18103227293 - 2⁶ = 18103227229 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 (18103229293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344930 + ... + 393932.

It is an arithmetic number, because the mean of its divisors is an integer number (2341166100).

Almost surely, 2^18103227293 is an apocalyptic number.

It is an amenable number.

18103227293 is a deficient number, since it is larger than the sum of its proper divisors (626101507).

18103227293 is a wasteful number, since it uses less digits than its factorization.

18103227293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61771.

The product of its (nonzero) digits is 36288, while the sum is 38.

The spelling of 18103227293 in words is "eighteen billion, one hundred three million, two hundred twenty-seven thousand, two hundred ninety-three".