842181619536 has 30 divisors (see below), whose sum is σ = 2356938838410. Its totient is φ = 280727206464.

The previous prime is 842181619511. The next prime is 842181619553. The reversal of 842181619536 is 635916181248.

It is a happy number.

842181619536 is a `hidden beast` number, since 8 + 4 + 2 + 18 + 1 + 619 + 5 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 556217640000 + 285963979536 = 745800^2 + 534756^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2924241591 + ... + 2924241878.

It is an arithmetic number, because the mean of its divisors is an integer number (78564627947).

Almost surely, 2^842181619536 is an apocalyptic number.

It is an amenable number.

842181619536 is an abundant number, since it is smaller than the sum of its proper divisors (1514757218874).

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

842181619536 is a wasteful number, since it uses less digits than its factorization.

842181619536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5848483483 (or 5848483474 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 54.

The spelling of 842181619536 in words is "eight hundred forty-two billion, one hundred eighty-one million, six hundred nineteen thousand, five hundred thirty-six".