862138606056 has 256 divisors, whose sum is σ = 2789984010240. Its totient is φ = 215889822720.

The previous prime is 862138606051. The next prime is 862138606093. The reversal of 862138606056 is 650606831268.

It is not an unprimeable number, because it can be changed into a prime (862138606051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3468181 + ... + 3708443.

It is an arithmetic number, because the mean of its divisors is an integer number (10898375040).

Almost surely, 2^862138606056 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 862138606056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394992005120).

862138606056 is an abundant number, since it is smaller than the sum of its proper divisors (1927845404184).

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

862138606056 is a wasteful number, since it uses less digits than its factorization.

862138606056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240376 (or 240372 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 862138606056 in words is "eight hundred sixty-two billion, one hundred thirty-eight million, six hundred six thousand, fifty-six".