146830378009 has 4 divisors (see below), whose sum is σ = 167806146304. Its totient is φ = 125854609716.

The previous prime is 146830378001. The next prime is 146830378021. The reversal of 146830378009 is 900873038641.

It is a happy number.

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 146830378009 - 2³ = 146830378001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146830378001) 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 3 ways as a sum of consecutive naturals, for example, 10487884137 + ... + 10487884150.

It is an arithmetic number, because the mean of its divisors is an integer number (41951536576).

Almost surely, 2^146830378009 is an apocalyptic number.

It is an amenable number.

146830378009 is a deficient number, since it is larger than the sum of its proper divisors (20975768295).

146830378009 is an equidigital number, since it uses as much as digits as its factorization.

146830378009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20975768294.

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 146830378009 in words is "one hundred forty-six billion, eight hundred thirty million, three hundred seventy-eight thousand, nine".