849398170384 has 45 divisors (see below), whose sum is σ = 1661216355253. Its totient is φ = 420734241536.

The previous prime is 849398170367. The next prime is 849398170399. The reversal of 849398170384 is 483071893948.

The square root of 849398170384 is 921628.

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

It can be written as a sum of positive squares in only one way, i.e., 14967075600 + 834431094784 = 122340^2 + 913472^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 416574837 + ... + 416576875.

Almost surely, 2^849398170384 is an apocalyptic number.

849398170384 is the 921628-th square number.

It is an amenable number.

849398170384 is a deficient number, since it is larger than the sum of its proper divisors (811818184869).

849398170384 is an frugal number, since it uses more digits than its factorization.

849398170384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4312 (or 2154 counting only the distinct ones).

The product of its (nonzero) digits is 41803776, while the sum is 64.

Multiplying 849398170384 by its sum of digits (64), we get a square (54361482904576 = 7373024²).

The spelling of 849398170384 in words is "eight hundred forty-nine billion, three hundred ninety-eight million, one hundred seventy thousand, three hundred eighty-four".