63434218354 has 16 divisors (see below), whose sum is σ = 103410762840. Its totient is φ = 29008730880.

The previous prime is 63434218327. The next prime is 63434218357. The reversal of 63434218354 is 45381243436.

It can be written as a sum of positive squares in 4 ways, for example, as 47399821225 + 16034397129 = 217715^2 + 126627^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 63434218354.

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 7 ways as a sum of consecutive naturals, for example, 11188807 + ... + 11194474.

Almost surely, 2^63434218354 is an apocalyptic number.

63434218354 is a deficient number, since it is larger than the sum of its proper divisors (39976544486).

63434218354 is a wasteful number, since it uses less digits than its factorization.

63434218354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22383405.

The product of its digits is 829440, while the sum is 43.

The spelling of 63434218354 in words is "sixty-three billion, four hundred thirty-four million, two hundred eighteen thousand, three hundred fifty-four".