18303662645284 has 27 divisors (see below), whose sum is σ = 32092665142993. Its totient is φ = 9134363113568.

The previous prime is 18303662645273. The next prime is 18303662645293. The reversal of 18303662645284 is 48254626630381.

It is a happy number.

The square root of 18303662645284 is 4278278.

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

It can be written as a sum of positive squares in only one way, i.e., 530085924900 + 17773576720384 = 728070^2 + 4215872^2 .

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 5279393319 + ... + 5279396785.

Almost surely, 2^{18303662645284} is an apocalyptic number.

18303662645284 is the 4278278-th square number.

It is an amenable number.

18303662645284 is a deficient number, since it is larger than the sum of its proper divisors (13789002497709).

18303662645284 is an frugal number, since it uses more digits than its factorization.

18303662645284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8172 (or 4086 counting only the distinct ones).

The product of its (nonzero) digits is 39813120, while the sum is 58.

The spelling of 18303662645284 in words is "eighteen trillion, three hundred three billion, six hundred sixty-two million, six hundred forty-five thousand, two hundred eighty-four".