12401127489 has 4 divisors (see below), whose sum is σ = 16534836656. Its totient is φ = 8267418324.

The previous prime is 12401127481. The next prime is 12401127493. The reversal of 12401127489 is 98472110421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12401127489 - 2³ = 12401127481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12401127481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2066854579 + ... + 2066854584.

It is an arithmetic number, because the mean of its divisors is an integer number (4133709164).

Almost surely, 2^12401127489 is an apocalyptic number.

It is an amenable number.

12401127489 is a deficient number, since it is larger than the sum of its proper divisors (4133709167).

12401127489 is an equidigital number, since it uses as much as digits as its factorization.

12401127489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4133709166.

The product of its (nonzero) digits is 32256, while the sum is 39.

The spelling of 12401127489 in words is "twelve billion, four hundred one million, one hundred twenty-seven thousand, four hundred eighty-nine".