12489049338 has 64 divisors (see below), whose sum is σ = 26277419520. Its totient is φ = 3952461312.

The previous prime is 12489049297. The next prime is 12489049361. The reversal of 12489049338 is 83394098421.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 3890278 + ... + 3893486.

It is an arithmetic number, because the mean of its divisors is an integer number (410584680).

Almost surely, 2^12489049338 is an apocalyptic number.

12489049338 is an abundant number, since it is smaller than the sum of its proper divisors (13788370182).

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

12489049338 is a wasteful number, since it uses less digits than its factorization.

12489049338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3671.

The product of its (nonzero) digits is 1492992, while the sum is 51.

The spelling of 12489049338 in words is "twelve billion, four hundred eighty-nine million, forty-nine thousand, three hundred thirty-eight".