8944985491 has 4 divisors (see below), whose sum is σ = 9633061312. Its totient is φ = 8256909672.

The previous prime is 8944985479. The next prime is 8944985501. The reversal of 8944985491 is 1945894498.

8944985491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1945894498 = 2 ⋅972947249.

It is a cyclic number.

It is not a de Polignac number, because 8944985491 - 2²³ = 8936596883 is a prime.

It is a super-2 number, since 2×8944985491² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8944985411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 344037891 + ... + 344037916.

It is an arithmetic number, because the mean of its divisors is an integer number (2408265328).

Almost surely, 2^8944985491 is an apocalyptic number.

8944985491 is a deficient number, since it is larger than the sum of its proper divisors (688075821).

8944985491 is a wasteful number, since it uses less digits than its factorization.

8944985491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 688075820.

The product of its digits is 14929920, while the sum is 61.

The square root of 8944985491 is about 94577.9334252975. The cubic root of 8944985491 is about 2075.8368321379.

The spelling of 8944985491 in words is "eight billion, nine hundred forty-four million, nine hundred eighty-five thousand, four hundred ninety-one".