842787556887860 has 48 divisors (see below), whose sum is σ = 1783933543096320. Its totient is φ = 334433608185600.

The previous prime is 842787556887851. The next prime is 842787556887863. The reversal of 842787556887860 is 68788655787248.

842787556887860 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842787556887863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18149285 + ... + 44888435.

It is an arithmetic number, because the mean of its divisors is an integer number (37165282147840).

Almost surely, 2^{842787556887860} is an apocalyptic number.

It is an amenable number.

842787556887860 is an abundant number, since it is smaller than the sum of its proper divisors (941145986208460).

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

842787556887860 is a wasteful number, since it uses less digits than its factorization.

842787556887860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26751696 (or 26751694 counting only the distinct ones).

The product of its (nonzero) digits is 80923852800, while the sum is 89.

The spelling of 842787556887860 in words is "eight hundred forty-two trillion, seven hundred eighty-seven billion, five hundred fifty-six million, eight hundred eighty-seven thousand, eight hundred sixty".