8942743636 has 24 divisors (see below), whose sum is σ = 15951819240. Its totient is φ = 4386714176.

The previous prime is 8942743633. The next prime is 8942743657. The reversal of 8942743636 is 6363472498.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 596824900 + 8345918736 = 24430^2 + 91356^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8942743633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 588000 + ... + 603016.

It is an arithmetic number, because the mean of its divisors is an integer number (664659135).

Almost surely, 2^8942743636 is an apocalyptic number.

It is an amenable number.

8942743636 is a deficient number, since it is larger than the sum of its proper divisors (7009075604).

8942743636 is an equidigital number, since it uses as much as digits as its factorization.

8942743636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15180 (or 15072 counting only the distinct ones).

The product of its digits is 5225472, while the sum is 52.

The square root of 8942743636 is about 94566.0807901015. The cubic root of 8942743636 is about 2075.6633973860.

The spelling of 8942743636 in words is "eight billion, nine hundred forty-two million, seven hundred forty-three thousand, six hundred thirty-six".