63634635021332 has 12 divisors (see below), whose sum is σ = 111362214938016. Its totient is φ = 31816859324760.

The previous prime is 63634635021301. The next prime is 63634635021341. The reversal of 63634635021332 is 23312053643636.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114233894 + ... + 114789597.

It is an arithmetic number, because the mean of its divisors is an integer number (9280184578168).

Almost surely, 2^{63634635021332} is an apocalyptic number.

It is an amenable number.

63634635021332 is a deficient number, since it is larger than the sum of its proper divisors (47727579916684).

63634635021332 is a wasteful number, since it uses less digits than its factorization.

63634635021332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229092958 (or 229092956 counting only the distinct ones).

The product of its (nonzero) digits is 4199040, while the sum is 47.

Adding to 63634635021332 its reverse (23312053643636), we get a palindrome (86946688664968).

The spelling of 63634635021332 in words is "sixty-three trillion, six hundred thirty-four billion, six hundred thirty-five million, twenty-one thousand, three hundred thirty-two".