8642147202 has 128 divisors (see below), whose sum is σ = 21928273920. Its totient is φ = 2503560960.

The previous prime is 8642147147. The next prime is 8642147221. The reversal of 8642147202 is 2027412468.

8642147202 is a `hidden beast` number, since 8 + 642 + 1 + 4 + 7 + 2 + 0 + 2 = 666.

It is a super-2 number, since 2×8642147202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 799828 + ... + 810560.

It is an arithmetic number, because the mean of its divisors is an integer number (171314640).

Almost surely, 2^8642147202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8642147202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10964136960).

8642147202 is an abundant number, since it is smaller than the sum of its proper divisors (13286126718).

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

8642147202 is a wasteful number, since it uses less digits than its factorization.

8642147202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10825 (or 10819 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 8642147202 is about 92963.1496992222. The cubic root of 8642147202 is about 2052.1411063665.

The spelling of 8642147202 in words is "eight billion, six hundred forty-two million, one hundred forty-seven thousand, two hundred two".