12144742730473 has 8 divisors (see below), whose sum is σ = 12150207425736. Its totient is φ = 12139278345600.

The previous prime is 12144742730387. The next prime is 12144742730501. The reversal of 12144742730473 is 37403724744121.

It is a happy number.

12144742730473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 2396684823129 + 9748057907344 = 1548123^2 + 3122188^2 .

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 12144742730473 - 2⁴¹ = 9945719474921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12144742730173) 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, 117219613 + ... + 117323173.

It is an arithmetic number, because the mean of its divisors is an integer number (1518775928217).

Almost surely, 2^{12144742730473} is an apocalyptic number.

It is an amenable number.

12144742730473 is a deficient number, since it is larger than the sum of its proper divisors (5464695263).

12144742730473 is a wasteful number, since it uses less digits than its factorization.

12144742730473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155195.

The product of its (nonzero) digits is 3161088, while the sum is 49.

The spelling of 12144742730473 in words is "twelve trillion, one hundred forty-four billion, seven hundred forty-two million, seven hundred thirty thousand, four hundred seventy-three".