8485771392 has 144 divisors (see below), whose sum is σ = 28405605150. Its totient is φ = 2424489984.

The previous prime is 8485771387. The next prime is 8485771421. The reversal of 8485771392 is 2931775848.

It is a happy number.

8485771392 is a `hidden beast` number, since 8 + 485 + 7 + 71 + 3 + 92 = 666.

It can be written as a sum of positive squares in only one way, i.e., 5894554176 + 2591217216 = 76776^2 + 50904^2 .

It is a tau number, because it is divible by the number of its divisors (144).

It is a super-2 number, since 2×8485771392² (a number of 21 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18717 + ... + 131612.

Almost surely, 2^8485771392 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 8485771392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14202802575).

8485771392 is an abundant number, since it is smaller than the sum of its proper divisors (19919833758).

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

8485771392 is a wasteful number, since it uses less digits than its factorization.

8485771392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150363 (or 150341 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 8485771392 is about 92118.2467918273. The cubic root of 8485771392 is about 2039.6881645612.

The spelling of 8485771392 in words is "eight billion, four hundred eighty-five million, seven hundred seventy-one thousand, three hundred ninety-two".