8749909089 has 20 divisors (see below), whose sum is σ = 13758793840. Its totient is φ = 5526257400.

The previous prime is 8749909079. The next prime is 8749909093. The reversal of 8749909089 is 9809099478.

It is not a de Polignac number, because 8749909089 - 2⁷ = 8749908961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8749909009) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2841187 + ... + 2844264.

It is an arithmetic number, because the mean of its divisors is an integer number (687939692).

Almost surely, 2^8749909089 is an apocalyptic number.

It is an amenable number.

8749909089 is a deficient number, since it is larger than the sum of its proper divisors (5008884751).

8749909089 is a wasteful number, since it uses less digits than its factorization.

8749909089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5685482 (or 5685473 counting only the distinct ones).

The product of its (nonzero) digits is 11757312, while the sum is 63.

The square root of 8749909089 is about 93540.9487283511. The cubic root of 8749909089 is about 2060.6355133049.

The spelling of 8749909089 in words is "eight billion, seven hundred forty-nine million, nine hundred nine thousand, eighty-nine".