8722129264 has 20 divisors (see below), whose sum is σ = 16937633680. Its totient is φ = 4351127040.

The previous prime is 8722129237. The next prime is 8722129271. The reversal of 8722129264 is 4629212278.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 8722129264.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613857 + ... + 627904.

It is an arithmetic number, because the mean of its divisors is an integer number (846881684).

Almost surely, 2^8722129264 is an apocalyptic number.

It is an amenable number.

8722129264 is a deficient number, since it is larger than the sum of its proper divisors (8215504416).

8722129264 is a wasteful number, since it uses less digits than its factorization.

8722129264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242208 (or 1242202 counting only the distinct ones).

The product of its digits is 193536, while the sum is 43.

The square root of 8722129264 is about 93392.3404996363. The cubic root of 8722129264 is about 2058.4524513135.

The spelling of 8722129264 in words is "eight billion, seven hundred twenty-two million, one hundred twenty-nine thousand, two hundred sixty-four".