449778765180750 has 64 divisors (see below), whose sum is σ = 1122659612553024. Its totient is φ = 119939741798400.

The previous prime is 449778765180469. The next prime is 449778765180757. The reversal of 449778765180750 is 57081567877944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449778765180757) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69265374 + ... + 75480126.

It is an arithmetic number, because the mean of its divisors is an integer number (17541556446141).

Almost surely, 2^{449778765180750} is an apocalyptic number.

449778765180750 is an abundant number, since it is smaller than the sum of its proper divisors (672880847372274).

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

449778765180750 is a wasteful number, since it uses less digits than its factorization.

449778765180750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311270 (or 6311260 counting only the distinct ones).

The product of its (nonzero) digits is 3319142400, while the sum is 78.

The spelling of 449778765180750 in words is "four hundred forty-nine trillion, seven hundred seventy-eight billion, seven hundred sixty-five million, one hundred eighty thousand, seven hundred fifty".