505613378752 has 112 divisors (see below), whose sum is σ = 1098831992832. Its totient is φ = 229794877440.

The previous prime is 505613378749. The next prime is 505613378773. The reversal of 505613378752 is 257873316505.

It is a self number, because there is not a number n which added to its sum of digits gives 505613378752.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16950283 + ... + 16980085.

It is an arithmetic number, because the mean of its divisors is an integer number (9810999936).

Almost surely, 2^505613378752 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505613378752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549415996416).

505613378752 is an abundant number, since it is smaller than the sum of its proper divisors (593218614080).

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

505613378752 is a wasteful number, since it uses less digits than its factorization.

505613378752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30366 (or 30356 counting only the distinct ones).

The product of its (nonzero) digits is 5292000, while the sum is 52.

The spelling of 505613378752 in words is "five hundred five billion, six hundred thirteen million, three hundred seventy-eight thousand, seven hundred fifty-two".