1784229428849 has 8 divisors (see below), whose sum is σ = 2039444563968. Its totient is φ = 1529095597920.

The previous prime is 1784229428783. The next prime is 1784229428921. The reversal of 1784229428849 is 9488249224871.

It is a happy number.

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 1784229428849 - 2²⁰ = 1784228380273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1784229422849) 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, 20279012 + ... + 20366805.

It is an arithmetic number, because the mean of its divisors is an integer number (254930570496).

Almost surely, 2^{1784229428849} is an apocalyptic number.

It is an amenable number.

1784229428849 is a deficient number, since it is larger than the sum of its proper divisors (255215135119).

1784229428849 is an equidigital number, since it uses as much as digits as its factorization.

1784229428849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40652095.

The product of its digits is 148635648, while the sum is 68.

The spelling of 1784229428849 in words is "one trillion, seven hundred eighty-four billion, two hundred twenty-nine million, four hundred twenty-eight thousand, eight hundred forty-nine".