842040247408 has 20 divisors (see below), whose sum is σ = 1631878731648. Its totient is φ = 420910252160.

The previous prime is 842040247393. The next prime is 842040247409. The reversal of 842040247408 is 804742040248.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842040247409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6803728 + ... + 6926383.

Almost surely, 2^842040247408 is an apocalyptic number.

It is an amenable number.

842040247408 is a deficient number, since it is larger than the sum of its proper divisors (789838484240).

842040247408 is a wasteful number, since it uses less digits than its factorization.

842040247408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13733952 (or 13733946 counting only the distinct ones).

The product of its (nonzero) digits is 458752, while the sum is 43.

The spelling of 842040247408 in words is "eight hundred forty-two billion, forty million, two hundred forty-seven thousand, four hundred eight".