8891812149 has 8 divisors (see below), whose sum is σ = 12933544992. Its totient is φ = 5388977040.

The previous prime is 8891812117. The next prime is 8891812151. The reversal of 8891812149 is 9412181988.

8891812149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8891812149 - 2⁵ = 8891812117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8891812159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134724394 + ... + 134724459.

It is an arithmetic number, because the mean of its divisors is an integer number (1616693124).

Almost surely, 2^8891812149 is an apocalyptic number.

It is an amenable number.

8891812149 is a deficient number, since it is larger than the sum of its proper divisors (4041732843).

8891812149 is a wasteful number, since it uses less digits than its factorization.

8891812149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269448867.

The product of its digits is 331776, while the sum is 51.

The square root of 8891812149 is about 94296.4058116745. The cubic root of 8891812149 is about 2071.7153936350.

The spelling of 8891812149 in words is "eight billion, eight hundred ninety-one million, eight hundred twelve thousand, one hundred forty-nine".