8128723768342 has 8 divisors (see below), whose sum is σ = 12613536882000. Its totient is φ = 3924211474344.

The previous prime is 8128723768309. The next prime is 8128723768349. The reversal of 8128723768342 is 2438673278218.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8128723768349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70075204842 + ... + 70075204957.

It is an arithmetic number, because the mean of its divisors is an integer number (1576692110250).

Almost surely, 2^{8128723768342} is an apocalyptic number.

8128723768342 is a deficient number, since it is larger than the sum of its proper divisors (4484813113658).

8128723768342 is a wasteful number, since it uses less digits than its factorization.

8128723768342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140150409830.

The product of its digits is 43352064, while the sum is 61.

The spelling of 8128723768342 in words is "eight trillion, one hundred twenty-eight billion, seven hundred twenty-three million, seven hundred sixty-eight thousand, three hundred forty-two".