3618655886863 has 2 divisors, whose sum is σ = 3618655886864. Its totient is φ = 3618655886862.

The previous prime is 3618655886843. The next prime is 3618655886887. The reversal of 3618655886863 is 3686885568163.

It is a happy number.

3618655886863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3618655886863 - 2³⁷ = 3481216933391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3618655886843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1809327943431 + 1809327943432.

It is an arithmetic number, because the mean of its divisors is an integer number (1809327943432).

Almost surely, 2^{3618655886863} is an apocalyptic number.

3618655886863 is a deficient number, since it is larger than the sum of its proper divisors (1).

3618655886863 is an equidigital number, since it uses as much as digits as its factorization.

3618655886863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1194393600, while the sum is 73.

The spelling of 3618655886863 in words is "three trillion, six hundred eighteen billion, six hundred fifty-five million, eight hundred eighty-six thousand, eight hundred sixty-three".