63725406343 has 4 divisors (see below), whose sum is σ = 66496076208. Its totient is φ = 60954736480.

The previous prime is 63725406341. The next prime is 63725406377. The reversal of 63725406343 is 34360452736.

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 63725406343 - 2¹ = 63725406341 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 63725406343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63725406341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1385334898 + ... + 1385334943.

It is an arithmetic number, because the mean of its divisors is an integer number (16624019052).

Almost surely, 2^63725406343 is an apocalyptic number.

63725406343 is a deficient number, since it is larger than the sum of its proper divisors (2770669865).

63725406343 is a wasteful number, since it uses less digits than its factorization.

63725406343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770669864.

The product of its (nonzero) digits is 1088640, while the sum is 43.

The spelling of 63725406343 in words is "sixty-three billion, seven hundred twenty-five million, four hundred six thousand, three hundred forty-three".