1243742338474 has 8 divisors (see below), whose sum is σ = 1865699541828. Its totient is φ = 621842491200.

The previous prime is 1243742338451. The next prime is 1243742338483. The reversal of 1243742338474 is 4748332473421.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1014643217025 + 229099121449 = 1007295^2 + 478643^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14284767 + ... + 14371570.

Almost surely, 2^{1243742338474} is an apocalyptic number.

1243742338474 is a deficient number, since it is larger than the sum of its proper divisors (621957203354).

1243742338474 is a wasteful number, since it uses less digits than its factorization.

1243742338474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28678040.

The product of its digits is 10838016, while the sum is 52.

The spelling of 1243742338474 in words is "one trillion, two hundred forty-three billion, seven hundred forty-two million, three hundred thirty-eight thousand, four hundred seventy-four".