63444317442859 has 8 divisors (see below), whose sum is σ = 63540479163392. Its totient is φ = 63348228164520.

The previous prime is 63444317442713. The next prime is 63444317442871. The reversal of 63444317442859 is 95824471344436.

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

It is a cyclic number.

It is not a de Polignac number, because 63444317442859 - 2¹¹ = 63444317440811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63444317442859.

It is not an unprimeable number, because it can be changed into a prime (63444317422859) 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, 16357509 + ... + 19860934.

It is an arithmetic number, because the mean of its divisors is an integer number (7942559895424).

Almost surely, 2^{63444317442859} is an apocalyptic number.

63444317442859 is a deficient number, since it is larger than the sum of its proper divisors (96161720533).

63444317442859 is a wasteful number, since it uses less digits than its factorization.

63444317442859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36221097.

The product of its digits is 278691840, while the sum is 64.

The spelling of 63444317442859 in words is "sixty-three trillion, four hundred forty-four billion, three hundred seventeen million, four hundred forty-two thousand, eight hundred fifty-nine".