18683516853383 has 2 divisors, whose sum is σ = 18683516853384. Its totient is φ = 18683516853382.

The previous prime is 18683516853367. The next prime is 18683516853401. The reversal of 18683516853383 is 38335861538681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18683516853383 - 2⁴ = 18683516853367 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18683516853343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9341758426691 + 9341758426692.

It is an arithmetic number, because the mean of its divisors is an integer number (9341758426692).

Almost surely, 2^{18683516853383} is an apocalyptic number.

18683516853383 is a deficient number, since it is larger than the sum of its proper divisors (1).

18683516853383 is an equidigital number, since it uses as much as digits as its factorization.

18683516853383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 298598400, while the sum is 68.

The spelling of 18683516853383 in words is "eighteen trillion, six hundred eighty-three billion, five hundred sixteen million, eight hundred fifty-three thousand, three hundred eighty-three".