12909131381428 has 12 divisors (see below), whose sum is σ = 22591188722592. Its totient is φ = 6454506032120.

The previous prime is 12909131381329. The next prime is 12909131381467. The reversal of 12909131381428 is 82418313190921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14426008 + ... + 15294703.

It is an arithmetic number, because the mean of its divisors is an integer number (1882599060216).

Almost surely, 2^{12909131381428} is an apocalyptic number.

It is an amenable number.

12909131381428 is a deficient number, since it is larger than the sum of its proper divisors (9682057341164).

12909131381428 is a wasteful number, since it uses less digits than its factorization.

12909131381428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29829302 (or 29829300 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 12909131381428 in words is "twelve trillion, nine hundred nine billion, one hundred thirty-one million, three hundred eighty-one thousand, four hundred twenty-eight".