856281740512 has 48 divisors (see below), whose sum is σ = 1839308092272. Its totient is φ = 389166392320.

The previous prime is 856281740497. The next prime is 856281740519. The reversal of 856281740512 is 215047182658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856281740519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2506578 + ... + 2827630.

It is an arithmetic number, because the mean of its divisors is an integer number (38318918589).

Almost surely, 2^856281740512 is an apocalyptic number.

It is an amenable number.

856281740512 is an abundant number, since it is smaller than the sum of its proper divisors (983026351760).

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

856281740512 is a wasteful number, since it uses less digits than its factorization.

856281740512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328651 (or 328643 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 49.

The spelling of 856281740512 in words is "eight hundred fifty-six billion, two hundred eighty-one million, seven hundred forty thousand, five hundred twelve".