18369230252356 has 9 divisors (see below), whose sum is σ = 32146167942399. Its totient is φ = 9184610840244.

The previous prime is 18369230252353. The next prime is 18369230252393. The reversal of 18369230252356 is 65325203296381.

The square root of 18369230252356 is 4285934.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18369230252297 and 18369230252306.

It is not an unprimeable number, because it can be changed into a prime (18369230252353) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7500385 + ... + 9643351.

Almost surely, 2^{18369230252356} is an apocalyptic number.

18369230252356 is the 4285934-th square number.

It is an amenable number.

18369230252356 is a deficient number, since it is larger than the sum of its proper divisors (13776937690043).

18369230252356 is an frugal number, since it uses more digits than its factorization.

18369230252356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4285938 (or 2142969 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 55.

The spelling of 18369230252356 in words is "eighteen trillion, three hundred sixty-nine billion, two hundred thirty million, two hundred fifty-two thousand, three hundred fifty-six".