1839150009 has 32 divisors (see below), whose sum is σ = 2805895680. Its totient is φ = 1189728000.

The previous prime is 1839149987. The next prime is 1839150013. The reversal of 1839150009 is 9000519381.

It is a happy number.

It is not a de Polignac number, because 1839150009 - 2¹⁶ = 1839084473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1839150029) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398304 + ... + 402894.

It is an arithmetic number, because the mean of its divisors is an integer number (87684240).

Almost surely, 2^1839150009 is an apocalyptic number.

It is an amenable number.

1839150009 is a deficient number, since it is larger than the sum of its proper divisors (966745671).

1839150009 is a wasteful number, since it uses less digits than its factorization.

1839150009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5038 (or 5032 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 36.

The square root of 1839150009 is about 42885.3122758830. The cubic root of 1839150009 is about 1225.1964164294.

The spelling of 1839150009 in words is "one billion, eight hundred thirty-nine million, one hundred fifty thousand, nine".