63123252675721 has 16 divisors (see below), whose sum is σ = 72805628649600. Its totient is φ = 53607108711168.

The previous prime is 63123252675697. The next prime is 63123252675727. The reversal of 63123252675721 is 12757625232136.

It is a cyclic number.

It is not a de Polignac number, because 63123252675721 - 2⁴¹ = 60924229420169 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63123252675727) 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 15 ways as a sum of consecutive naturals, for example, 17480910 + ... + 20780488.

It is an arithmetic number, because the mean of its divisors is an integer number (4550351790600).

Almost surely, 2^{63123252675721} is an apocalyptic number.

It is an amenable number.

63123252675721 is a deficient number, since it is larger than the sum of its proper divisors (9682375973879).

63123252675721 is a wasteful number, since it uses less digits than its factorization.

63123252675721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3324768.

The product of its digits is 6350400, while the sum is 52.

The spelling of 63123252675721 in words is "sixty-three trillion, one hundred twenty-three billion, two hundred fifty-two million, six hundred seventy-five thousand, seven hundred twenty-one".