842006906028 has 108 divisors (see below), whose sum is σ = 2247620236680. Its totient is φ = 275911360128.

The previous prime is 842006906021. The next prime is 842006906029. The reversal of 842006906028 is 820609600248.

It is a tau number, because it is divible by the number of its divisors (108).

It is not an unprimeable number, because it can be changed into a prime (842006906021) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1276500 + ... + 1820292.

Almost surely, 2^842006906028 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842006906028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1123810118340).

842006906028 is an abundant number, since it is smaller than the sum of its proper divisors (1405613330652).

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

842006906028 is an equidigital number, since it uses as much as digits as its factorization.

842006906028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543880 (or 543857 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 842006906028 in words is "eight hundred forty-two billion, six million, nine hundred six thousand, twenty-eight".