1779442823853 has 24 divisors (see below), whose sum is σ = 2605324176000. Its totient is φ = 1170161763264.

The previous prime is 1779442823843. The next prime is 1779442823857. The reversal of 1779442823853 is 3583282449771.

It is a happy number.

1779442823853 is a `hidden beast` number, since 1 + 77 + 94 + 428 + 2 + 3 + 8 + 53 = 666.

It is not a de Polignac number, because 1779442823853 - 2¹⁴ = 1779442807469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1779442823857) 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 23 ways as a sum of consecutive naturals, for example, 447075 + ... + 1938752.

It is an arithmetic number, because the mean of its divisors is an integer number (108555174000).

Almost surely, 2^{1779442823853} is an apocalyptic number.

It is an amenable number.

1779442823853 is a deficient number, since it is larger than the sum of its proper divisors (825881352147).

1779442823853 is a wasteful number, since it uses less digits than its factorization.

1779442823853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2386961 (or 2386958 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 1779442823853 in words is "one trillion, seven hundred seventy-nine billion, four hundred forty-two million, eight hundred twenty-three thousand, eight hundred fifty-three".