63378559997943 has 8 divisors (see below), whose sum is σ = 87230706233856. Its totient is φ = 40889393547000.

The previous prime is 63378559997933. The next prime is 63378559998049. The reversal of 63378559997943 is 34979995587336.

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

It is not a de Polignac number, because 63378559997943 - 2⁴ = 63378559997927 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63378559997943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63378559997933) 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, 340744946133 + ... + 340744946318.

It is an arithmetic number, because the mean of its divisors is an integer number (10903838279232).

Almost surely, 2^{63378559997943} is an apocalyptic number.

63378559997943 is a deficient number, since it is larger than the sum of its proper divisors (23852146235913).

63378559997943 is a wasteful number, since it uses less digits than its factorization.

63378559997943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681489892485.

The product of its digits is 41664974400, while the sum is 87.

The spelling of 63378559997943 in words is "sixty-three trillion, three hundred seventy-eight billion, five hundred fifty-nine million, nine hundred ninety-seven thousand, nine hundred forty-three".