842040247386 has 96 divisors (see below), whose sum is σ = 1940654278080. Its totient is φ = 242067953664.

The previous prime is 842040247309. The next prime is 842040247393. The reversal of 842040247386 is 683742040248.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2951925 + ... + 3224583.

It is an arithmetic number, because the mean of its divisors is an integer number (20215148730).

Almost surely, 2^842040247386 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 842040247386, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970327139040).

842040247386 is an abundant number, since it is smaller than the sum of its proper divisors (1098614030694).

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

842040247386 is a wasteful number, since it uses less digits than its factorization.

842040247386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272848 (or 272831 counting only the distinct ones).

The product of its (nonzero) digits is 2064384, while the sum is 48.

The spelling of 842040247386 in words is "eight hundred forty-two billion, forty million, two hundred forty-seven thousand, three hundred eighty-six".