36668363869 has 2 divisors, whose sum is σ = 36668363870. Its totient is φ = 36668363868.

The previous prime is 36668363861. The next prime is 36668363903. The reversal of 36668363869 is 96836386663.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25611841369 + 11056522500 = 160037^2 + 105150^2 .

It is a cyclic number.

It is not a de Polignac number, because 36668363869 - 2³ = 36668363861 is a prime.

It is a super-2 number, since 2×36668363869² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 36668363869.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36668363861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18334181934 + 18334181935.

It is an arithmetic number, because the mean of its divisors is an integer number (18334181935).

Almost surely, 2^36668363869 is an apocalyptic number.

It is an amenable number.

36668363869 is a deficient number, since it is larger than the sum of its proper divisors (1).

36668363869 is an equidigital number, since it uses as much as digits as its factorization.

36668363869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120932352, while the sum is 64.

The spelling of 36668363869 in words is "thirty-six billion, six hundred sixty-eight million, three hundred sixty-three thousand, eight hundred sixty-nine".