8994474238464 has 720 divisors, whose sum is σ = 30758756206464. Its totient is φ = 2508204441600.

The previous prime is 8994474238427. The next prime is 8994474238483. The reversal of 8994474238464 is 4648324744998.

8994474238464 is a `hidden beast` number, since 8 + 9 + 9 + 447 + 42 + 3 + 84 + 64 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 8994474238392 and 8994474238401.

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 71 ways as a sum of consecutive naturals, for example, 3143820394 + ... + 3143823254.

Almost surely, 2^{8994474238464} 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 8994474238464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15379378103232).

8994474238464 is an abundant number, since it is smaller than the sum of its proper divisors (21764281968000).

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

8994474238464 is a wasteful number, since it uses less digits than its factorization.

8994474238464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3289 (or 3257 counting only the distinct ones).

The product of its digits is 1337720832, while the sum is 72.

The spelling of 8994474238464 in words is "eight trillion, nine hundred ninety-four billion, four hundred seventy-four million, two hundred thirty-eight thousand, four hundred sixty-four".