190444946809 has 8 divisors (see below), whose sum is σ = 206570060480. Its totient is φ = 174530619216.

The previous prime is 190444946789. The next prime is 190444946819. The reversal of 190444946809 is 908649444091.

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

It is a cyclic number.

It is not a de Polignac number, because 190444946809 - 2⁵ = 190444946777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (190444946819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52694637 + ... + 52698250.

It is an arithmetic number, because the mean of its divisors is an integer number (25821257560).

Almost surely, 2^190444946809 is an apocalyptic number.

It is an amenable number.

190444946809 is a deficient number, since it is larger than the sum of its proper divisors (16125113671).

190444946809 is a wasteful number, since it uses less digits than its factorization.

190444946809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105393039.

The product of its (nonzero) digits is 8957952, while the sum is 58.

The spelling of 190444946809 in words is "one hundred ninety billion, four hundred forty-four million, nine hundred forty-six thousand, eight hundred nine".