8919988264 has 64 divisors (see below), whose sum is σ = 19334712960. Its totient is φ = 3812874240.

The previous prime is 8919988223. The next prime is 8919988277. The reversal of 8919988264 is 4628899198.

It is a junction number, because it is equal to n+sod(n) for n = 8919988196 and 8919988205.

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 15 ways as a sum of consecutive naturals, for example, 3120724 + ... + 3123580.

It is an arithmetic number, because the mean of its divisors is an integer number (302104890).

Almost surely, 2^8919988264 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 8919988264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9667356480).

8919988264 is an abundant number, since it is smaller than the sum of its proper divisors (10414724696).

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

8919988264 is a wasteful number, since it uses less digits than its factorization.

8919988264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4978 (or 4974 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 64.

The square root of 8919988264 is about 94445.6894940156. The cubic root of 8919988264 is about 2073.9013500986.

The spelling of 8919988264 in words is "eight billion, nine hundred nineteen million, nine hundred eighty-eight thousand, two hundred sixty-four".