18284253553 has 2 divisors, whose sum is σ = 18284253554. Its totient is φ = 18284253552.

The previous prime is 18284253469. The next prime is 18284253563. The reversal of 18284253553 is 35535248281.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16422935104 + 1861318449 = 128152^2 + 43143^2 .

It is a cyclic number.

It is not a de Polignac number, because 18284253553 - 2¹³ = 18284245361 is a prime.

It is not a weakly prime, because it can be changed into another prime (18284253563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9142126776 + 9142126777.

It is an arithmetic number, because the mean of its divisors is an integer number (9142126777).

Almost surely, 2^18284253553 is an apocalyptic number.

It is an amenable number.

18284253553 is a deficient number, since it is larger than the sum of its proper divisors (1).

18284253553 is an equidigital number, since it uses as much as digits as its factorization.

18284253553 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152000, while the sum is 46.

The spelling of 18284253553 in words is "eighteen billion, two hundred eighty-four million, two hundred fifty-three thousand, five hundred fifty-three".