63434218353 has 64 divisors (see below), whose sum is σ = 99158556672. Its totient is φ = 35644206080.

The previous prime is 63434218327. The next prime is 63434218357. The reversal of 63434218353 is 35381243436.

It is a cyclic number.

It is not a de Polignac number, because 63434218353 - 2¹² = 63434214257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63434218357) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17831851 + ... + 17835407.

It is an arithmetic number, because the mean of its divisors is an integer number (1549352448).

Almost surely, 2^63434218353 is an apocalyptic number.

It is an amenable number.

63434218353 is a deficient number, since it is larger than the sum of its proper divisors (35724338319).

63434218353 is a wasteful number, since it uses less digits than its factorization.

63434218353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4054.

The product of its digits is 622080, while the sum is 42.

The spelling of 63434218353 in words is "sixty-three billion, four hundred thirty-four million, two hundred eighteen thousand, three hundred fifty-three".