847710334138 has 4 divisors (see below), whose sum is σ = 1271565501210. Its totient is φ = 423855167068.

The previous prime is 847710334123. The next prime is 847710334187. The reversal of 847710334138 is 831433017748.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 565072434369 + 282637899769 = 751713^2 + 531637^2 .

It is a super-2 number, since 2×847710334138² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 847710334091 and 847710334100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211927583533 + ... + 211927583536.

Almost surely, 2^847710334138 is an apocalyptic number.

847710334138 is a deficient number, since it is larger than the sum of its proper divisors (423855167072).

847710334138 is a wasteful number, since it uses less digits than its factorization.

847710334138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423855167071.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 847710334138 in words is "eight hundred forty-seven billion, seven hundred ten million, three hundred thirty-four thousand, one hundred thirty-eight".