842427236864 has 80 divisors (see below), whose sum is σ = 1757818117440. Its totient is φ = 402572881920.

The previous prime is 842427236851. The next prime is 842427236873. The reversal of 842427236864 is 468632724248.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14797574 + ... + 14854394.

It is an arithmetic number, because the mean of its divisors is an integer number (21972726468).

Almost surely, 2^842427236864 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 842427236864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (878909058720).

842427236864 is an abundant number, since it is smaller than the sum of its proper divisors (915390880576).

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

842427236864 is a wasteful number, since it uses less digits than its factorization.

842427236864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58121 (or 58105 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 56.

The spelling of 842427236864 in words is "eight hundred forty-two billion, four hundred twenty-seven million, two hundred thirty-six thousand, eight hundred sixty-four".