63104021543 has 4 divisors (see below), whose sum is σ = 63452662728. Its totient is φ = 62755380360.

The previous prime is 63104021537. The next prime is 63104021581. The reversal of 63104021543 is 34512040136.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63104021543 - 2¹² = 63104017447 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 (63104020543) 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 3 ways as a sum of consecutive naturals, for example, 174320321 + ... + 174320682.

It is an arithmetic number, because the mean of its divisors is an integer number (15863165682).

Almost surely, 2^63104021543 is an apocalyptic number.

63104021543 is a deficient number, since it is larger than the sum of its proper divisors (348641185).

63104021543 is a wasteful number, since it uses less digits than its factorization.

63104021543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348641184.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 63104021543 its reverse (34512040136), we get a palindrome (97616061679).

The spelling of 63104021543 in words is "sixty-three billion, one hundred four million, twenty-one thousand, five hundred forty-three".