36631813663 has 2 divisors, whose sum is σ = 36631813664. Its totient is φ = 36631813662.

The previous prime is 36631813661. The next prime is 36631813709.

36631813663 is nontrivially palindromic in base 10.

It is an a-pointer prime, because the next prime (36631813709) can be obtained adding 36631813663 to its sum of digits (46).

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 36631813663 - 2¹ = 36631813661 is a prime.

Together with 36631813661, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36631813661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18315906831 + 18315906832.

It is an arithmetic number, because the mean of its divisors is an integer number (18315906832).

Almost surely, 2^36631813663 is an apocalyptic number.

36631813663 is a deficient number, since it is larger than the sum of its proper divisors (1).

36631813663 is an equidigital number, since it uses as much as digits as its factorization.

36631813663 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 839808, while the sum is 46.

The spelling of 36631813663 in words is "thirty-six billion, six hundred thirty-one million, eight hundred thirteen thousand, six hundred sixty-three".