63340405237 has 2 divisors, whose sum is σ = 63340405238. Its totient is φ = 63340405236.

The previous prime is 63340405229. The next prime is 63340405267. The reversal of 63340405237 is 73250404336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54125557201 + 9214848036 = 232649^2 + 95994^2 .

It is a cyclic number.

It is not a de Polignac number, because 63340405237 - 2³ = 63340405229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63340405196 and 63340405205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63340405217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31670202618 + 31670202619.

It is an arithmetic number, because the mean of its divisors is an integer number (31670202619).

Almost surely, 2^63340405237 is an apocalyptic number.

It is an amenable number.

63340405237 is a deficient number, since it is larger than the sum of its proper divisors (1).

63340405237 is an equidigital number, since it uses as much as digits as its factorization.

63340405237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 37.

Subtracting 63340405237 from its reverse (73250404336), we obtain a palindrome (9909999099).

The spelling of 63340405237 in words is "sixty-three billion, three hundred forty million, four hundred five thousand, two hundred thirty-seven".