849271744188 has 360 divisors, whose sum is σ = 2732682876000. Its totient is φ = 229867206912.

The previous prime is 849271744183. The next prime is 849271744199. The reversal of 849271744188 is 881447172948.

849271744188 is a `hidden beast` number, since 8 + 49 + 2 + 7 + 174 + 418 + 8 = 666.

It is a super-2 number, since 2×849271744188² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (849271744183) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 40108068 + ... + 40129236.

Almost surely, 2^849271744188 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 849271744188, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1366341438000).

849271744188 is an abundant number, since it is smaller than the sum of its proper divisors (1883411131812).

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

849271744188 is a wasteful number, since it uses less digits than its factorization.

849271744188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21244 (or 21200 counting only the distinct ones).

The product of its digits is 28901376, while the sum is 63.

The spelling of 849271744188 in words is "eight hundred forty-nine billion, two hundred seventy-one million, seven hundred forty-four thousand, one hundred eighty-eight".