8721546468 has 12 divisors (see below), whose sum is σ = 20350275120. Its totient is φ = 2907182152.

The previous prime is 8721546467. The next prime is 8721546469. The reversal of 8721546468 is 8646451278.

It is an interprime number because it is at equal distance from previous prime (8721546467) and next prime (8721546469).

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 8721546468.

It is not an unprimeable number, because it can be changed into a prime (8721546467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 363397758 + ... + 363397781.

It is an arithmetic number, because the mean of its divisors is an integer number (1695856260).

Almost surely, 2^8721546468 is an apocalyptic number.

It is an amenable number.

8721546468 is an abundant number, since it is smaller than the sum of its proper divisors (11628728652).

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

8721546468 is a wasteful number, since it uses less digits than its factorization.

8721546468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726795546 (or 726795544 counting only the distinct ones).

The product of its digits is 2580480, while the sum is 51.

The square root of 8721546468 is about 93389.2202987047. The cubic root of 8721546468 is about 2058.4066030067.

The spelling of 8721546468 in words is "eight billion, seven hundred twenty-one million, five hundred forty-six thousand, four hundred sixty-eight".