63910701947 has 2 divisors, whose sum is σ = 63910701948. Its totient is φ = 63910701946.

The previous prime is 63910701937. The next prime is 63910701989. The reversal of 63910701947 is 74910701936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63910701947 - 2⁸ = 63910701691 is a prime.

It is not a weakly prime, because it can be changed into another prime (63910701937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31955350973 + 31955350974.

It is an arithmetic number, because the mean of its divisors is an integer number (31955350974).

Almost surely, 2^63910701947 is an apocalyptic number.

63910701947 is a deficient number, since it is larger than the sum of its proper divisors (1).

63910701947 is an equidigital number, since it uses as much as digits as its factorization.

63910701947 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 63910701947 in words is "sixty-three billion, nine hundred ten million, seven hundred one thousand, nine hundred forty-seven".