65438683456 has 56 divisors (see below), whose sum is σ = 131930928416. Its totient is φ = 32197271040.

The previous prime is 65438683441. The next prime is 65438683493.

65438683456 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 65438683456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4370575 + ... + 4385521.

It is an arithmetic number, because the mean of its divisors is an integer number (2355909436).

Almost surely, 2^65438683456 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 65438683456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65965464208).

65438683456 is an abundant number, since it is smaller than the sum of its proper divisors (66492244960).

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

65438683456 is a wasteful number, since it uses less digits than its factorization.

65438683456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16047 (or 16037 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 58.

The spelling of 65438683456 in words is "sixty-five billion, four hundred thirty-eight million, six hundred eighty-three thousand, four hundred fifty-six".