63123129330621 has 32 divisors (see below), whose sum is σ = 85889900371968. Its totient is φ = 41230209230400.

The previous prime is 63123129330607. The next prime is 63123129330637. The reversal of 63123129330621 is 12603392132136.

It is not a de Polignac number, because 63123129330621 - 2⁶ = 63123129330557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63123129334621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8487010 + ... + 14081036.

It is an arithmetic number, because the mean of its divisors is an integer number (2684059386624).

Almost surely, 2^{63123129330621} is an apocalyptic number.

It is an amenable number.

63123129330621 is a deficient number, since it is larger than the sum of its proper divisors (22766771041347).

63123129330621 is a wasteful number, since it uses less digits than its factorization.

63123129330621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5594521.

The product of its (nonzero) digits is 209952, while the sum is 42.

The spelling of 63123129330621 in words is "sixty-three trillion, one hundred twenty-three billion, one hundred twenty-nine million, three hundred thirty thousand, six hundred twenty-one".