63432956837 has 2 divisors, whose sum is σ = 63432956838. Its totient is φ = 63432956836.

The previous prime is 63432956819. The next prime is 63432956861. The reversal of 63432956837 is 73865923436.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32474202436 + 30958754401 = 180206^2 + 175951^2 .

It is a cyclic number.

It is not a de Polignac number, because 63432956837 - 2¹⁴ = 63432940453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63432956887) 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, 31716478418 + 31716478419.

It is an arithmetic number, because the mean of its divisors is an integer number (31716478419).

Almost surely, 2^63432956837 is an apocalyptic number.

It is an amenable number.

63432956837 is a deficient number, since it is larger than the sum of its proper divisors (1).

63432956837 is an equidigital number, since it uses as much as digits as its factorization.

63432956837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 56.

The spelling of 63432956837 in words is "sixty-three billion, four hundred thirty-two million, nine hundred fifty-six thousand, eight hundred thirty-seven".