36168494569 has 2 divisors, whose sum is σ = 36168494570. Its totient is φ = 36168494568.

The previous prime is 36168494567. The next prime is 36168494641. The reversal of 36168494569 is 96549486163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35879936400 + 288558169 = 189420^2 + 16987^2 .

It is a cyclic number.

It is not a de Polignac number, because 36168494569 - 2¹ = 36168494567 is a prime.

It is a super-2 number, since 2×36168494569² (a number of 22 digits) contains 22 as substring.

Together with 36168494567, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (36168494567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18084247284 + 18084247285.

It is an arithmetic number, because the mean of its divisors is an integer number (18084247285).

Almost surely, 2^36168494569 is an apocalyptic number.

It is an amenable number.

36168494569 is a deficient number, since it is larger than the sum of its proper divisors (1).

36168494569 is an equidigital number, since it uses as much as digits as its factorization.

36168494569 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33592320, while the sum is 61.

The spelling of 36168494569 in words is "thirty-six billion, one hundred sixty-eight million, four hundred ninety-four thousand, five hundred sixty-nine".