826873375728 has 80 divisors (see below), whose sum is σ = 2231495675136. Its totient is φ = 263341224960.

The previous prime is 826873375723. The next prime is 826873375733. The reversal of 826873375728 is 827573378628.

826873375728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (826873375723) and next prime (826873375733).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (826873375723) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 547551 + ... + 1397697.

Almost surely, 2^826873375728 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 826873375728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1115747837568).

826873375728 is an abundant number, since it is smaller than the sum of its proper divisors (1404622299408).

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

826873375728 is a wasteful number, since it uses less digits than its factorization.

826873375728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851062 (or 851056 counting only the distinct ones).

The product of its digits is 189665280, while the sum is 66.

The spelling of 826873375728 in words is "eight hundred twenty-six billion, eight hundred seventy-three million, three hundred seventy-five thousand, seven hundred twenty-eight".