63965626338 has 8 divisors (see below), whose sum is σ = 127931252688. Its totient is φ = 21321875444.

The previous prime is 63965626313. The next prime is 63965626339. The reversal of 63965626338 is 83362656936.

It is a sphenic number, since it is the product of 3 distinct primes.

63965626338 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63965626339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5330468856 + ... + 5330468867.

It is an arithmetic number, because the mean of its divisors is an integer number (15991406586).

Almost surely, 2^63965626338 is an apocalyptic number.

63965626338 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63965626338 is a wasteful number, since it uses less digits than its factorization.

63965626338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10660937728.

The product of its digits is 25194240, while the sum is 57.

The spelling of 63965626338 in words is "sixty-three billion, nine hundred sixty-five million, six hundred twenty-six thousand, three hundred thirty-eight".