36536146992721 has 2 divisors, whose sum is σ = 36536146992722. Its totient is φ = 36536146992720.

The previous prime is 36536146992673. The next prime is 36536146992743. The reversal of 36536146992721 is 12729964163563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19335543728400 + 17200603264321 = 4397220^2 + 4147361^2 .

It is an emirp because it is prime and its reverse (12729964163563) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36536146992721 - 2³⁵ = 36501787254353 is a prime.

It is not a weakly prime, because it can be changed into another prime (36536146993721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18268073496360 + 18268073496361.

It is an arithmetic number, because the mean of its divisors is an integer number (18268073496361).

Almost surely, 2^{36536146992721} is an apocalyptic number.

It is an amenable number.

36536146992721 is a deficient number, since it is larger than the sum of its proper divisors (1).

36536146992721 is an equidigital number, since it uses as much as digits as its factorization.

36536146992721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 88179840, while the sum is 64.

The spelling of 36536146992721 in words is "thirty-six trillion, five hundred thirty-six billion, one hundred forty-six million, nine hundred ninety-two thousand, seven hundred twenty-one".