63986893017 has 8 divisors (see below), whose sum is σ = 85560316800. Its totient is φ = 42535698960.

The previous prime is 63986892989. The next prime is 63986893031. The reversal of 63986893017 is 71039868936.

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

It is not a de Polignac number, because 63986893017 - 2⁶ = 63986892953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63986893097) 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, 30556209 + ... + 30558302.

It is an arithmetic number, because the mean of its divisors is an integer number (10695039600).

Almost surely, 2^63986893017 is an apocalyptic number.

It is an amenable number.

63986893017 is a deficient number, since it is larger than the sum of its proper divisors (21573423783).

63986893017 is a wasteful number, since it uses less digits than its factorization.

63986893017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61114863.

The product of its (nonzero) digits is 11757312, while the sum is 60.

The spelling of 63986893017 in words is "sixty-three billion, nine hundred eighty-six million, eight hundred ninety-three thousand, seventeen".