8899645333488 has 320 divisors, whose sum is σ = 29724797491200. Its totient is φ = 2230037213184.

The previous prime is 8899645333421. The next prime is 8899645333499. The reversal of 8899645333488 is 8843335469988.

It is a super-2 number, since 2×8899645333488² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (78).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14671870 + ... + 15266402.

It is an arithmetic number, because the mean of its divisors is an integer number (92889992160).

Almost surely, 2^{8899645333488} 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 8899645333488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14862398745600).

8899645333488 is an abundant number, since it is smaller than the sum of its proper divisors (20825152157712).

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

8899645333488 is a wasteful number, since it uses less digits than its factorization.

8899645333488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594736 (or 594730 counting only the distinct ones).

The product of its digits is 4299816960, while the sum is 78.

The spelling of 8899645333488 in words is "eight trillion, eight hundred ninety-nine billion, six hundred forty-five million, three hundred thirty-three thousand, four hundred eighty-eight".