8447998997448 has 96 divisors (see below), whose sum is σ = 23120225856000. Its totient is φ = 2786584322304.

The previous prime is 8447998997411. The next prime is 8447998997461.

8447998997448 is a `hidden beast` number, since 8 + 4 + 4 + 79 + 9 + 8 + 9 + 97 + 448 = 666.

8447998997448 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×8447998997448² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1106028 + ... + 4256676.

It is an arithmetic number, because the mean of its divisors is an integer number (240835686000).

Almost surely, 2^{8447998997448} 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 8447998997448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11560112928000).

8447998997448 is an abundant number, since it is smaller than the sum of its proper divisors (14672226858552).

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

8447998997448 is a wasteful number, since it uses less digits than its factorization.

8447998997448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3151051 (or 3151044 counting only the distinct ones).

The product of its digits is 42138206208, while the sum is 90.

The spelling of 8447998997448 in words is "eight trillion, four hundred forty-seven billion, nine hundred ninety-eight million, nine hundred ninety-seven thousand, four hundred forty-eight".