12409634049 has 12 divisors (see below), whose sum is σ = 16905724464. Its totient is φ = 8097061864.

The previous prime is 12409634033. The next prime is 12409634089. The reversal of 12409634049 is 94043690421.

It is not a de Polignac number, because 12409634049 - 2⁴ = 12409634033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12409634049.

It is not an unprimeable number, because it can be changed into a prime (12409634089) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 929667 + ... + 942920.

It is an arithmetic number, because the mean of its divisors is an integer number (1408810372).

Almost surely, 2^12409634049 is an apocalyptic number.

It is an amenable number.

12409634049 is a deficient number, since it is larger than the sum of its proper divisors (4496090415).

12409634049 is an equidigital number, since it uses as much as digits as its factorization.

12409634049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872684 (or 1872637 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 12409634049 in words is "twelve billion, four hundred nine million, six hundred thirty-four thousand, forty-nine".