63689332398 has 16 divisors (see below), whose sum is σ = 127874304720. Its totient is φ = 21147170816.

The previous prime is 63689332393. The next prime is 63689332409. The reversal of 63689332398 is 89323398636.

It is a super-2 number, since 2×63689332398² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63689332393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20649993 + ... + 20653076.

It is an arithmetic number, because the mean of its divisors is an integer number (7992144045).

Almost surely, 2^63689332398 is an apocalyptic number.

63689332398 is an abundant number, since it is smaller than the sum of its proper divisors (64184972322).

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

63689332398 is a wasteful number, since it uses less digits than its factorization.

63689332398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41303331.

The product of its digits is 30233088, while the sum is 60.

The spelling of 63689332398 in words is "sixty-three billion, six hundred eighty-nine million, three hundred thirty-two thousand, three hundred ninety-eight".