363636404009 has 2 divisors, whose sum is σ = 363636404010. Its totient is φ = 363636404008.

The previous prime is 363636403981. The next prime is 363636404119. The reversal of 363636404009 is 900404636363.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271411824784 + 92224579225 = 520972^2 + 303685^2 .

It is a cyclic number.

It is not a de Polignac number, because 363636404009 - 2²⁸ = 363367968553 is a prime.

It is not a weakly prime, because it can be changed into another prime (363636404909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 181818202004 + 181818202005.

It is an arithmetic number, because the mean of its divisors is an integer number (181818202005).

Almost surely, 2^363636404009 is an apocalyptic number.

It is an amenable number.

363636404009 is a deficient number, since it is larger than the sum of its proper divisors (1).

363636404009 is an equidigital number, since it uses as much as digits as its factorization.

363636404009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 839808, while the sum is 44.

The spelling of 363636404009 in words is "three hundred sixty-three billion, six hundred thirty-six million, four hundred four thousand, nine".