18484638284573 has 2 divisors, whose sum is σ = 18484638284574. Its totient is φ = 18484638284572.

The previous prime is 18484638284501. The next prime is 18484638284641. The reversal of 18484638284573 is 37548283648481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14680683445444 + 3803954839129 = 3831538^2 + 1950373^2 .

It is a cyclic number.

It is not a de Polignac number, because 18484638284573 - 2¹⁰ = 18484638283549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18484638284497 and 18484638284506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18484638281573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9242319142286 + 9242319142287.

It is an arithmetic number, because the mean of its divisors is an integer number (9242319142287).

Almost surely, 2^{18484638284573} is an apocalyptic number.

It is an amenable number.

18484638284573 is a deficient number, since it is larger than the sum of its proper divisors (1).

18484638284573 is an equidigital number, since it uses as much as digits as its factorization.

18484638284573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 990904320, while the sum is 71.

The spelling of 18484638284573 in words is "eighteen trillion, four hundred eighty-four billion, six hundred thirty-eight million, two hundred eighty-four thousand, five hundred seventy-three".