63999224999 has 8 divisors (see below), whose sum is σ = 66648354432. Its totient is φ = 61386635520.

The previous prime is 63999224963. The next prime is 63999225007. The reversal of 63999224999 is 99942299936.

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-63999224999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63999224099) 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, 9131414 + ... + 9138419.

It is an arithmetic number, because the mean of its divisors is an integer number (8331044304).

Almost surely, 2^63999224999 is an apocalyptic number.

63999224999 is a deficient number, since it is larger than the sum of its proper divisors (2649129433).

63999224999 is a wasteful number, since it uses less digits than its factorization.

63999224999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18269977.

The product of its digits is 153055008, while the sum is 71.

The spelling of 63999224999 in words is "sixty-three billion, nine hundred ninety-nine million, two hundred twenty-four thousand, nine hundred ninety-nine".