1794045228509 has 8 divisors (see below), whose sum is σ = 1810180392312. Its totient is φ = 1777976328960.

The previous prime is 1794045228397. The next prime is 1794045228541. The reversal of 1794045228509 is 9058225404971.

It can be written as a sum of positive squares in 4 ways, for example, as 568850825284 + 1225194403225 = 754222^2 + 1106885^2 .

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 1794045228509 - 2⁸ = 1794045228253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1794045225509) 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, 16511672 + ... + 16619969.

It is an arithmetic number, because the mean of its divisors is an integer number (226272549039).

Almost surely, 2^{1794045228509} is an apocalyptic number.

It is an amenable number.

1794045228509 is a deficient number, since it is larger than the sum of its proper divisors (16135163803).

1794045228509 is a wasteful number, since it uses less digits than its factorization.

1794045228509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33132127.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 1794045228509 in words is "one trillion, seven hundred ninety-four billion, forty-five million, two hundred twenty-eight thousand, five hundred nine".