8722865780 has 12 divisors (see below), whose sum is σ = 18318018180. Its totient is φ = 3489146304.

The previous prime is 8722865779. The next prime is 8722865791. The reversal of 8722865780 is 875682278.

It can be written as a sum of positive squares in 2 ways, for example, as 1325833744 + 7397032036 = 36412^2 + 86006^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218071625 + ... + 218071664.

It is an arithmetic number, because the mean of its divisors is an integer number (1526501515).

Almost surely, 2^8722865780 is an apocalyptic number.

It is an amenable number.

8722865780 is an abundant number, since it is smaller than the sum of its proper divisors (9595152400).

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

8722865780 is a wasteful number, since it uses less digits than its factorization.

8722865780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436143298 (or 436143296 counting only the distinct ones).

The product of its (nonzero) digits is 3010560, while the sum is 53.

The square root of 8722865780 is about 93396.2835449034. The cubic root of 8722865780 is about 2058.5103897842.

The spelling of 8722865780 in words is "eight billion, seven hundred twenty-two million, eight hundred sixty-five thousand, seven hundred eighty".