1779823798923 has 8 divisors (see below), whose sum is σ = 2449649959936. Its totient is φ = 1148273418600.

The previous prime is 1779823798897. The next prime is 1779823798937. The reversal of 1779823798923 is 3298973289771.

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

It is not a de Polignac number, because 1779823798923 - 2²⁰ = 1779822750347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1779823798723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9568945063 + ... + 9568945248.

It is an arithmetic number, because the mean of its divisors is an integer number (306206244992).

Almost surely, 2^{1779823798923} is an apocalyptic number.

1779823798923 is a deficient number, since it is larger than the sum of its proper divisors (669826161013).

1779823798923 is a wasteful number, since it uses less digits than its factorization.

1779823798923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19137890345.

The product of its digits is 576108288, while the sum is 75.

The spelling of 1779823798923 in words is "one trillion, seven hundred seventy-nine billion, eight hundred twenty-three million, seven hundred ninety-eight thousand, nine hundred twenty-three".