36342209009081 has 2 divisors, whose sum is σ = 36342209009082. Its totient is φ = 36342209009080.

The previous prime is 36342209009053. The next prime is 36342209009123. The reversal of 36342209009081 is 18090090224363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35953694899600 + 388514109481 = 5996140^2 + 623309^2 .

It is an emirp because it is prime and its reverse (18090090224363) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36342209009081 is a prime.

It is a super-2 number, since 2×36342209009081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36342209008081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18171104504540 + 18171104504541.

It is an arithmetic number, because the mean of its divisors is an integer number (18171104504541).

Almost surely, 2^{36342209009081} is an apocalyptic number.

It is an amenable number.

36342209009081 is a deficient number, since it is larger than the sum of its proper divisors (1).

36342209009081 is an equidigital number, since it uses as much as digits as its factorization.

36342209009081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 47.

The spelling of 36342209009081 in words is "thirty-six trillion, three hundred forty-two billion, two hundred nine million, nine thousand, eighty-one".