12711611561449 has 8 divisors (see below), whose sum is σ = 12721434324480. Its totient is φ = 12701790050976.

The previous prime is 12711611561393. The next prime is 12711611561461. The reversal of 12711611561449 is 94416511611721.

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

It is a cyclic number.

It is not a de Polignac number, because 12711611561449 - 2¹⁹ = 12711611037161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12711611531449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20526189 + ... + 21136405.

It is an arithmetic number, because the mean of its divisors is an integer number (1590179290560).

Almost surely, 2^{12711611561449} is an apocalyptic number.

It is an amenable number.

12711611561449 is a deficient number, since it is larger than the sum of its proper divisors (9822763031).

12711611561449 is a wasteful number, since it uses less digits than its factorization.

12711611561449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626279.

The product of its digits is 362880, while the sum is 49.

The spelling of 12711611561449 in words is "twelve trillion, seven hundred eleven billion, six hundred eleven million, five hundred sixty-one thousand, four hundred forty-nine".