8200871640 has 96 divisors (see below), whose sum is σ = 28703067120. Its totient is φ = 2018674944.

The previous prime is 8200871629. The next prime is 8200871641. The reversal of 8200871640 is 461780028.

8200871640 is a `hidden beast` number, since 8 + 2 + 0 + 0 + 8 + 7 + 1 + 640 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 8200871595 and 8200871604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8200871641) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 871482 + ... + 880841.

Almost surely, 2^8200871640 is an apocalyptic number.

It is an amenable number.

8200871640 is an abundant number, since it is smaller than the sum of its proper divisors (20502195480).

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

8200871640 is a wasteful number, since it uses less digits than its factorization.

8200871640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752353 (or 1752346 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 8200871640 is about 90558.6640802524. The cubic root of 8200871640 is about 2016.6011234153.

The spelling of 8200871640 in words is "eight billion, two hundred million, eight hundred seventy-one thousand, six hundred forty".