63747063643 has 2 divisors, whose sum is σ = 63747063644. Its totient is φ = 63747063642.

The previous prime is 63747063629. The next prime is 63747063733. The reversal of 63747063643 is 34636074736.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63747063643 is a prime.

It is not a weakly prime, because it can be changed into another prime (63747063623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31873531821 + 31873531822.

It is an arithmetic number, because the mean of its divisors is an integer number (31873531822).

Almost surely, 2^63747063643 is an apocalyptic number.

63747063643 is a deficient number, since it is larger than the sum of its proper divisors (1).

63747063643 is an equidigital number, since it uses as much as digits as its factorization.

63747063643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4572288, while the sum is 49.

The spelling of 63747063643 in words is "sixty-three billion, seven hundred forty-seven million, sixty-three thousand, six hundred forty-three".