8530418721 has 8 divisors (see below), whose sum is σ = 12407881824. Its totient is φ = 5169950720.

The previous prime is 8530418693. The next prime is 8530418789. The reversal of 8530418721 is 1278140358.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8530418721 - 2¹⁴ = 8530402337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8530418721.

It is not an unprimeable number, because it can be changed into a prime (8530418021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129248736 + ... + 129248801.

It is an arithmetic number, because the mean of its divisors is an integer number (1550985228).

Almost surely, 2^8530418721 is an apocalyptic number.

It is an amenable number.

8530418721 is a deficient number, since it is larger than the sum of its proper divisors (3877463103).

8530418721 is a wasteful number, since it uses less digits than its factorization.

8530418721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258497551.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 8530418721 is about 92360.2659210117. The cubic root of 8530418721 is about 2043.2591375017.

The spelling of 8530418721 in words is "eight billion, five hundred thirty million, four hundred eighteen thousand, seven hundred twenty-one".