842540635134 has 48 divisors (see below), whose sum is σ = 1992581201520. Its totient is φ = 255171559680.

The previous prime is 842540635133. The next prime is 842540635151. The reversal of 842540635134 is 431536045248.

842540635134 is a `hidden beast` number, since 8 + 4 + 2 + 5 + 4 + 0 + 635 + 1 + 3 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 842540635134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842540635133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 845469 + ... + 1549160.

It is an arithmetic number, because the mean of its divisors is an integer number (41512108365).

Almost surely, 2^842540635134 is an apocalyptic number.

842540635134 is an abundant number, since it is smaller than the sum of its proper divisors (1150040566386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

842540635134 is a wasteful number, since it uses less digits than its factorization.

842540635134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2396425 (or 2396422 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 45.

The spelling of 842540635134 in words is "eight hundred forty-two billion, five hundred forty million, six hundred thirty-five thousand, one hundred thirty-four".