8688945642 has 32 divisors (see below), whose sum is σ = 18812666880. Its totient is φ = 2659519680.

The previous prime is 8688945637. The next prime is 8688945647. The reversal of 8688945642 is 2465498868.

8688945642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8688945637) and next prime (8688945647).

It is not an unprimeable number, because it can be changed into a prime (8688945647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 276717 + ... + 306512.

It is an arithmetic number, because the mean of its divisors is an integer number (587895840).

Almost surely, 2^8688945642 is an apocalyptic number.

8688945642 is an abundant number, since it is smaller than the sum of its proper divisors (10123721238).

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

8688945642 is a wasteful number, since it uses less digits than its factorization.

8688945642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583438.

The product of its digits is 26542080, while the sum is 60.

The square root of 8688945642 is about 93214.5141166331. The cubic root of 8688945642 is about 2055.8386508367.

The spelling of 8688945642 in words is "eight billion, six hundred eighty-eight million, nine hundred forty-five thousand, six hundred forty-two".