842120884065 has 8 divisors (see below), whose sum is σ = 1347393414528. Its totient is φ = 449131138160.

The previous prime is 842120884049. The next prime is 842120884069. The reversal of 842120884065 is 560488021248.

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

It is not a de Polignac number, because 842120884065 - 2⁴ = 842120884049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (842120884069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28070696121 + ... + 28070696150.

It is an arithmetic number, because the mean of its divisors is an integer number (168424176816).

Almost surely, 2^842120884065 is an apocalyptic number.

It is an amenable number.

842120884065 is a deficient number, since it is larger than the sum of its proper divisors (505272530463).

842120884065 is a wasteful number, since it uses less digits than its factorization.

842120884065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56141392279.

The product of its (nonzero) digits is 983040, while the sum is 48.

The spelling of 842120884065 in words is "eight hundred forty-two billion, one hundred twenty million, eight hundred eighty-four thousand, sixty-five".