842263511543 has 4 divisors (see below), whose sum is σ = 842987728968. Its totient is φ = 841539294120.

The previous prime is 842263511513. The next prime is 842263511561. The reversal of 842263511543 is 345115362248.

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 842263511543 - 2¹⁰ = 842263510519 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 842263511494 and 842263511503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842263511513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 362106968 + ... + 362109293.

It is an arithmetic number, because the mean of its divisors is an integer number (210746932242).

Almost surely, 2^842263511543 is an apocalyptic number.

842263511543 is a deficient number, since it is larger than the sum of its proper divisors (724217425).

842263511543 is a wasteful number, since it uses less digits than its factorization.

842263511543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724217424.

The product of its digits is 691200, while the sum is 44.

The spelling of 842263511543 in words is "eight hundred forty-two billion, two hundred sixty-three million, five hundred eleven thousand, five hundred forty-three".