8042128195487 has 8 divisors (see below), whose sum is σ = 8401570383360. Its totient is φ = 7688937176280.

The previous prime is 8042128195393. The next prime is 8042128195489. The reversal of 8042128195487 is 7845918212408.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8042128195487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8042128195489) 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, 1562789537 + ... + 1562794682.

It is an arithmetic number, because the mean of its divisors is an integer number (1050196297920).

Almost surely, 2^{8042128195487} is an apocalyptic number.

8042128195487 is a deficient number, since it is larger than the sum of its proper divisors (359442187873).

8042128195487 is a wasteful number, since it uses less digits than its factorization.

8042128195487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3125584333.

The product of its (nonzero) digits is 10321920, while the sum is 59.

The spelling of 8042128195487 in words is "eight trillion, forty-two billion, one hundred twenty-eight million, one hundred ninety-five thousand, four hundred eighty-seven".