856900831443 has 8 divisors (see below), whose sum is σ = 1142930204928. Its totient is φ = 571069339464.

The previous prime is 856900831441. The next prime is 856900831453. The reversal of 856900831443 is 344138009658.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 856900831443 - 2¹ = 856900831441 is a prime.

It is not an unprimeable number, because it can be changed into a prime (856900831441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49460271 + ... + 49477592.

It is an arithmetic number, because the mean of its divisors is an integer number (142866275616).

Almost surely, 2^856900831443 is an apocalyptic number.

856900831443 is a deficient number, since it is larger than the sum of its proper divisors (286029373485).

856900831443 is a wasteful number, since it uses less digits than its factorization.

856900831443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98940753.

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

The spelling of 856900831443 in words is "eight hundred fifty-six billion, nine hundred million, eight hundred thirty-one thousand, four hundred forty-three".