63138331633 has 8 divisors (see below), whose sum is σ = 68655274688. Its totient is φ = 57715695504.

The previous prime is 63138331603. The next prime is 63138331643. The reversal of 63138331633 is 33613383136.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63138331633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63138331603) 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 7 ways as a sum of consecutive naturals, for example, 23575335 + ... + 23578012.

It is an arithmetic number, because the mean of its divisors is an integer number (8581909336).

Almost surely, 2^63138331633 is an apocalyptic number.

It is an amenable number.

63138331633 is a deficient number, since it is larger than the sum of its proper divisors (5516943055).

63138331633 is a wasteful number, since it uses less digits than its factorization.

63138331633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47153463.

The product of its digits is 209952, while the sum is 40.

The spelling of 63138331633 in words is "sixty-three billion, one hundred thirty-eight million, three hundred thirty-one thousand, six hundred thirty-three".