63747323137 has 2 divisors, whose sum is σ = 63747323138. Its totient is φ = 63747323136.

The previous prime is 63747323131. The next prime is 63747323147. The reversal of 63747323137 is 73132374736.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43958992896 + 19788330241 = 209664^2 + 140671^2 .

It is a cyclic number.

It is not a de Polignac number, because 63747323137 - 2³¹ = 61599839489 is a prime.

It is not a weakly prime, because it can be changed into another prime (63747323131) 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, 31873661568 + 31873661569.

It is an arithmetic number, because the mean of its divisors is an integer number (31873661569).

Almost surely, 2^63747323137 is an apocalyptic number.

It is an amenable number.

63747323137 is a deficient number, since it is larger than the sum of its proper divisors (1).

63747323137 is an equidigital number, since it uses as much as digits as its factorization.

63747323137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1333584, while the sum is 46.

It can be divided in two parts, 63747 and 323137, that added together give a square (386884 = 622²).

The spelling of 63747323137 in words is "sixty-three billion, seven hundred forty-seven million, three hundred twenty-three thousand, one hundred thirty-seven".