36133721573 has 2 divisors, whose sum is σ = 36133721574. Its totient is φ = 36133721572.

The previous prime is 36133721567. The next prime is 36133721587. The reversal of 36133721573 is 37512733163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36061250404 + 72471169 = 189898^2 + 8513^2 .

It is a cyclic number.

It is not a de Polignac number, because 36133721573 - 2¹⁰ = 36133720549 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 36133721573.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36133721473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18066860786 + 18066860787.

It is an arithmetic number, because the mean of its divisors is an integer number (18066860787).

Almost surely, 2^36133721573 is an apocalyptic number.

It is an amenable number.

36133721573 is a deficient number, since it is larger than the sum of its proper divisors (1).

36133721573 is an equidigital number, since it uses as much as digits as its factorization.

36133721573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 238140, while the sum is 41.

The spelling of 36133721573 in words is "thirty-six billion, one hundred thirty-three million, seven hundred twenty-one thousand, five hundred seventy-three".