842422768127 has 4 divisors (see below), whose sum is σ = 842442754560. Its totient is φ = 842402781696.

The previous prime is 842422768067. The next prime is 842422768147. The reversal of 842422768127 is 721867224248.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 842422768127 - 2²² = 842418573823 is a prime.

It is a super-2 number, since 2×842422768127² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842422768147) 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, 9929858 + ... + 10014335.

It is an arithmetic number, because the mean of its divisors is an integer number (210610688640).

Almost surely, 2^842422768127 is an apocalyptic number.

842422768127 is a deficient number, since it is larger than the sum of its proper divisors (19986433).

842422768127 is a wasteful number, since it uses less digits than its factorization.

842422768127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19986432.

The product of its digits is 4816896, while the sum is 53.

The spelling of 842422768127 in words is "eight hundred forty-two billion, four hundred twenty-two million, seven hundred sixty-eight thousand, one hundred twenty-seven".