63423727573 has 2 divisors, whose sum is σ = 63423727574. Its totient is φ = 63423727572.

The previous prime is 63423727567. The next prime is 63423727603. The reversal of 63423727573 is 37572732436.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52834700164 + 10589027409 = 229858^2 + 102903^2 .

It is a cyclic number.

It is not a de Polignac number, because 63423727573 - 2⁵ = 63423727541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63423728573) 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, 31711863786 + 31711863787.

It is an arithmetic number, because the mean of its divisors is an integer number (31711863787).

Almost surely, 2^63423727573 is an apocalyptic number.

It is an amenable number.

63423727573 is a deficient number, since it is larger than the sum of its proper divisors (1).

63423727573 is an equidigital number, since it uses as much as digits as its factorization.

63423727573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4445280, while the sum is 49.

The spelling of 63423727573 in words is "sixty-three billion, four hundred twenty-three million, seven hundred twenty-seven thousand, five hundred seventy-three".