1785473063868 has 36 divisors (see below), whose sum is σ = 4511224846968. Its totient is φ = 549376326720.

The previous prime is 1785473063867. The next prime is 1785473063887. The reversal of 1785473063868 is 8683603745871.

It is a junction number, because it is equal to n+sod(n) for n = 1785473063799 and 1785473063808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1785473063867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440203363 + ... + 440207418.

Almost surely, 2^{1785473063868} is an apocalyptic number.

It is an amenable number.

1785473063868 is an abundant number, since it is smaller than the sum of its proper divisors (2725751783100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1785473063868 is a wasteful number, since it uses less digits than its factorization.

1785473063868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880410814 (or 880410799 counting only the distinct ones).

The product of its (nonzero) digits is 162570240, while the sum is 66.

The spelling of 1785473063868 in words is "one trillion, seven hundred eighty-five billion, four hundred seventy-three million, sixty-three thousand, eight hundred sixty-eight".