36534643589 has 2 divisors, whose sum is σ = 36534643590. Its totient is φ = 36534643588.

The previous prime is 36534643513. The next prime is 36534643619. The reversal of 36534643589 is 98534643563.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36379840225 + 154803364 = 190735^2 + 12442^2 .

It is an emirp because it is prime and its reverse (98534643563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36534643589 - 2⁸ = 36534643333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36534640589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18267321794 + 18267321795.

It is an arithmetic number, because the mean of its divisors is an integer number (18267321795).

Almost surely, 2^36534643589 is an apocalyptic number.

It is an amenable number.

36534643589 is a deficient number, since it is larger than the sum of its proper divisors (1).

36534643589 is an equidigital number, since it uses as much as digits as its factorization.

36534643589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 27993600, while the sum is 56.

The spelling of 36534643589 in words is "thirty-six billion, five hundred thirty-four million, six hundred forty-three thousand, five hundred eighty-nine".