1836535633789 has 2 divisors, whose sum is σ = 1836535633790. Its totient is φ = 1836535633788.

The previous prime is 1836535633787. The next prime is 1836535633847. The reversal of 1836535633789 is 9873365356381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1788077096100 + 48458537689 = 1337190^2 + 220133^2 .

It is a cyclic number.

It is not a de Polignac number, because 1836535633789 - 2¹ = 1836535633787 is a prime.

Together with 1836535633787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1836535633787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918267816894 + 918267816895.

It is an arithmetic number, because the mean of its divisors is an integer number (918267816895).

Almost surely, 2^{1836535633789} is an apocalyptic number.

It is an amenable number.

1836535633789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836535633789 is an equidigital number, since it uses as much as digits as its factorization.

1836535633789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 293932800, while the sum is 67.

The spelling of 1836535633789 in words is "one trillion, eight hundred thirty-six billion, five hundred thirty-five million, six hundred thirty-three thousand, seven hundred eighty-nine".