8900418989449 has 45 divisors (see below), whose sum is σ = 9789035515857. Its totient is φ = 8092439396496.

The previous prime is 8900418989443. The next prime is 8900418989453. The reversal of 8900418989449 is 9449898140098.

It is a happy number.

The square root of 8900418989449 is 2983357.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 4412969899849 + 4487449089600 = 2100707^2 + 2118360^2 .

It is not a de Polignac number, because 8900418989449 - 2²⁵ = 8900385435017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8900418989443) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 64031791222 + ... + 64031791360.

Almost surely, 2^{8900418989449} is an apocalyptic number.

8900418989449 is the 2983357-th square number.

8900418989449 is the 1491679-th centered octagonal number.

It is an amenable number.

8900418989449 is a deficient number, since it is larger than the sum of its proper divisors (888616526408).

8900418989449 is an frugal number, since it uses more digits than its factorization.

8900418989449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 584 (or 279 counting only the distinct ones).

The product of its (nonzero) digits is 214990848, while the sum is 73.

The spelling of 8900418989449 in words is "eight trillion, nine hundred billion, four hundred eighteen million, nine hundred eighty-nine thousand, four hundred forty-nine".