8718907572 has 36 divisors (see below), whose sum is σ = 23335901316. Its totient is φ = 2735343360.

The previous prime is 8718907531. The next prime is 8718907577. The reversal of 8718907572 is 2757098178.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4051831716 + 4667075856 = 63654^2 + 68316^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8718907577) 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 11 ways as a sum of consecutive naturals, for example, 7122679 + ... + 7123902.

It is an arithmetic number, because the mean of its divisors is an integer number (648219481).

Almost surely, 2^8718907572 is an apocalyptic number.

It is an amenable number.

8718907572 is an abundant number, since it is smaller than the sum of its proper divisors (14616993744).

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

8718907572 is a wasteful number, since it uses less digits than its factorization.

8718907572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14246608 (or 14246603 counting only the distinct ones).

The product of its (nonzero) digits is 1975680, while the sum is 54.

The square root of 8718907572 is about 93375.0907469439. The cubic root of 8718907572 is about 2058.1989766447.

The spelling of 8718907572 in words is "eight billion, seven hundred eighteen million, nine hundred seven thousand, five hundred seventy-two".