8722412500 has 72 divisors (see below), whose sum is σ = 19404070560. Its totient is φ = 3429540000.

The previous prime is 8722412459. The next prime is 8722412527. The reversal of 8722412500 is 52142278.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 731587 + ... + 743413.

It is an arithmetic number, because the mean of its divisors is an integer number (269500980).

Almost surely, 2^8722412500 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 8722412500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9702035280).

8722412500 is an abundant number, since it is smaller than the sum of its proper divisors (10681658060).

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

8722412500 is a wasteful number, since it uses less digits than its factorization.

8722412500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11915 (or 11893 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 31.

The square root of 8722412500 is about 93393.8568643570. The cubic root of 8722412500 is about 2058.4747326284.

Adding to 8722412500 its reverse (52142278), we get a palindrome (8774554778).

The spelling of 8722412500 in words is "eight billion, seven hundred twenty-two million, four hundred twelve thousand, five hundred".