8509994148 has 12 divisors (see below), whose sum is σ = 19856653040. Its totient is φ = 2836664712.

The previous prime is 8509994137. The next prime is 8509994149. The reversal of 8509994148 is 8414999058.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (8509994149) 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, 354583078 + ... + 354583101.

Almost surely, 2^8509994148 is an apocalyptic number.

It is an amenable number.

8509994148 is an abundant number, since it is smaller than the sum of its proper divisors (11346658892).

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

8509994148 is a wasteful number, since it uses less digits than its factorization.

8509994148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709166186 (or 709166184 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 57.

The square root of 8509994148 is about 92249.6295277114. The cubic root of 8509994148 is about 2041.6270938576.

The spelling of 8509994148 in words is "eight billion, five hundred nine million, nine hundred ninety-four thousand, one hundred forty-eight".