63453657947 has 2 divisors, whose sum is σ = 63453657948. Its totient is φ = 63453657946.

The previous prime is 63453657941. The next prime is 63453657977. The reversal of 63453657947 is 74975635436.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63453657947 - 2⁴ = 63453657931 is a prime.

It is not a weakly prime, because it can be changed into another prime (63453657941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31726828973 + 31726828974.

It is an arithmetic number, because the mean of its divisors is an integer number (31726828974).

Almost surely, 2^63453657947 is an apocalyptic number.

63453657947 is a deficient number, since it is larger than the sum of its proper divisors (1).

63453657947 is an equidigital number, since it uses as much as digits as its factorization.

63453657947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57153600, while the sum is 59.

The spelling of 63453657947 in words is "sixty-three billion, four hundred fifty-three million, six hundred fifty-seven thousand, nine hundred forty-seven".