12630555138 has 8 divisors (see below), whose sum is σ = 25261110288. Its totient is φ = 4210185044.

The previous prime is 12630555131. The next prime is 12630555139. The reversal of 12630555138 is 83155503621.

12630555138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

12630555138 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 12630555096 and 12630555105.

It is not an unprimeable number, because it can be changed into a prime (12630555131) 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, 1052546256 + ... + 1052546267.

It is an arithmetic number, because the mean of its divisors is an integer number (3157638786).

Almost surely, 2^12630555138 is an apocalyptic number.

12630555138 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12630555138 is a wasteful number, since it uses less digits than its factorization.

12630555138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105092528.

The product of its (nonzero) digits is 108000, while the sum is 39.

The spelling of 12630555138 in words is "twelve billion, six hundred thirty million, five hundred fifty-five thousand, one hundred thirty-eight".