12903138528 has 96 divisors (see below), whose sum is σ = 38727279360. Its totient is φ = 3684910080.

The previous prime is 12903138511. The next prime is 12903138553. The reversal of 12903138528 is 82583130921.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 12903138528.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2536948 + ... + 2542028.

It is an arithmetic number, because the mean of its divisors is an integer number (403409160).

Almost surely, 2^12903138528 is an apocalyptic number.

It is an amenable number.

12903138528 is an abundant number, since it is smaller than the sum of its proper divisors (25824140832).

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

12903138528 is a wasteful number, since it uses less digits than its factorization.

12903138528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8880 (or 8872 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 42.

The spelling of 12903138528 in words is "twelve billion, nine hundred three million, one hundred thirty-eight thousand, five hundred twenty-eight".