2989500509 has 4 divisors (see below), whose sum is σ = 3119478816. Its totient is φ = 2859522204.

The previous prime is 2989500497. The next prime is 2989500533. The reversal of 2989500509 is 9050059892.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2989500509 - 2⁸ = 2989500253 is a prime.

It is a super-2 number, since 2×2989500509² = 17874226586622518162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2989500809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64989119 + ... + 64989164.

It is an arithmetic number, because the mean of its divisors is an integer number (779869704).

Almost surely, 2^2989500509 is an apocalyptic number.

It is an amenable number.

2989500509 is a deficient number, since it is larger than the sum of its proper divisors (129978307).

2989500509 is a wasteful number, since it uses less digits than its factorization.

2989500509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129978306.

The product of its (nonzero) digits is 291600, while the sum is 47.

The square root of 2989500509 is about 54676.3249405078. The cubic root of 2989500509 is about 1440.5650606789.

The spelling of 2989500509 in words is "two billion, nine hundred eighty-nine million, five hundred thousand, five hundred nine".