8561128952042 has 8 divisors (see below), whose sum is σ = 13517572029600. Its totient is φ = 4055271608844.

The previous prime is 8561128952039. The next prime is 8561128952069. The reversal of 8561128952042 is 2402598211658.

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, 112646433542 + ... + 112646433617.

It is an arithmetic number, because the mean of its divisors is an integer number (1689696503700).

Almost surely, 2^{8561128952042} is an apocalyptic number.

8561128952042 is a deficient number, since it is larger than the sum of its proper divisors (4956443077558).

8561128952042 is a wasteful number, since it uses less digits than its factorization.

8561128952042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225292867180.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 8561128952042 in words is "eight trillion, five hundred sixty-one billion, one hundred twenty-eight million, nine hundred fifty-two thousand, forty-two".