63273447533 has 2 divisors, whose sum is σ = 63273447534. Its totient is φ = 63273447532.

The previous prime is 63273447529. The next prime is 63273447539. The reversal of 63273447533 is 33574437236.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34031763529 + 29241684004 = 184477^2 + 171002^2 .

It is a cyclic number.

It is not a de Polignac number, because 63273447533 - 2² = 63273447529 is a prime.

It is a super-2 number, since 2×63273447533² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63273447539) 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, 31636723766 + 31636723767.

It is an arithmetic number, because the mean of its divisors is an integer number (31636723767).

Almost surely, 2^63273447533 is an apocalyptic number.

It is an amenable number.

63273447533 is a deficient number, since it is larger than the sum of its proper divisors (1).

63273447533 is an equidigital number, since it uses as much as digits as its factorization.

63273447533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 47.

The spelling of 63273447533 in words is "sixty-three billion, two hundred seventy-three million, four hundred forty-seven thousand, five hundred thirty-three".