63836231318749 has 2 divisors, whose sum is σ = 63836231318750. Its totient is φ = 63836231318748.

The previous prime is 63836231318747. The next prime is 63836231318753. The reversal of 63836231318749 is 94781313263836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 59801717186649 + 4034514132100 = 7733157^2 + 2008610^2 .

It is a cyclic number.

It is not a de Polignac number, because 63836231318749 - 2¹ = 63836231318747 is a prime.

Together with 63836231318747, 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 (63836231318747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31918115659374 + 31918115659375.

It is an arithmetic number, because the mean of its divisors is an integer number (31918115659375).

Almost surely, 2^{63836231318749} is an apocalyptic number.

It is an amenable number.

63836231318749 is a deficient number, since it is larger than the sum of its proper divisors (1).

63836231318749 is an equidigital number, since it uses as much as digits as its factorization.

63836231318749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94058496, while the sum is 64.

The spelling of 63836231318749 in words is "sixty-three trillion, eight hundred thirty-six billion, two hundred thirty-one million, three hundred eighteen thousand, seven hundred forty-nine".