856276323904 has 63 divisors (see below), whose sum is σ = 1717359581403. Its totient is φ = 423603937152.

The previous prime is 856276323871. The next prime is 856276323907. The reversal of 856276323904 is 409323672658.

The square root of 856276323904 is 925352.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (856276323907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 762489487 + ... + 762490609.

Almost surely, 2^856276323904 is an apocalyptic number.

856276323904 is the 925352-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 856276323904

856276323904 is an abundant number, since it is smaller than the sum of its proper divisors (861083257499).

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

856276323904 is an frugal number, since it uses more digits than its factorization.

856276323904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2464 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 856276323904 in words is "eight hundred fifty-six billion, two hundred seventy-six million, three hundred twenty-three thousand, nine hundred four".