8646542940 has 192 divisors, whose sum is σ = 29146521600. Its totient is φ = 1912458240.

The previous prime is 8646542939. The next prime is 8646542977. The reversal of 8646542940 is 492456468.

8646542940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 8646542940.

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 631204 + ... + 644756.

It is an arithmetic number, because the mean of its divisors is an integer number (151804800).

Almost surely, 2^8646542940 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8646542940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14573260800).

8646542940 is an abundant number, since it is smaller than the sum of its proper divisors (20499978660).

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

8646542940 is a wasteful number, since it uses less digits than its factorization.

8646542940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13617 (or 13601 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 48.

The square root of 8646542940 is about 92986.7890616726. The cubic root of 8646542940 is about 2052.4889807793.

The spelling of 8646542940 in words is "eight billion, six hundred forty-six million, five hundred forty-two thousand, nine hundred forty".