63894065983 has 8 divisors (see below), whose sum is σ = 69721952976. Its totient is φ = 58069401600.

The previous prime is 63894065981. The next prime is 63894066029. The reversal of 63894065983 is 38956049836.

63894065983 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 63894065983 - 2¹ = 63894065981 is a prime.

It is a super-3 number, since 3×63894065983³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63894065981) 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, 764098 + ... + 843583.

It is an arithmetic number, because the mean of its divisors is an integer number (8715244122).

Almost surely, 2^63894065983 is an apocalyptic number.

63894065983 is a deficient number, since it is larger than the sum of its proper divisors (5827886993).

63894065983 is a wasteful number, since it uses less digits than its factorization.

63894065983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611305.

The product of its (nonzero) digits is 33592320, while the sum is 61.

The spelling of 63894065983 in words is "sixty-three billion, eight hundred ninety-four million, sixty-five thousand, nine hundred eighty-three".