8642743626 has 64 divisors (see below), whose sum is σ = 19709153280. Its totient is φ = 2501019840.

The previous prime is 8642743607. The next prime is 8642743633. The reversal of 8642743626 is 6263472468.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 986895 + ... + 995613.

It is an arithmetic number, because the mean of its divisors is an integer number (307955520).

Almost surely, 2^8642743626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8642743626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9854576640).

8642743626 is an abundant number, since it is smaller than the sum of its proper divisors (11066409654).

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

8642743626 is a wasteful number, since it uses less digits than its factorization.

8642743626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9411.

The product of its digits is 2322432, while the sum is 48.

The square root of 8642743626 is about 92966.3574956016. The cubic root of 8642743626 is about 2052.1883136952.

The spelling of 8642743626 in words is "eight billion, six hundred forty-two million, seven hundred forty-three thousand, six hundred twenty-six".