505321000654470 has 384 divisors, whose sum is σ = 1647710728197120. Its totient is φ = 96307340912640.

The previous prime is 505321000654417. The next prime is 505321000654489. The reversal of 505321000654470 is 74456000123505.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 57168936 + ... + 65413524.

It is an arithmetic number, because the mean of its divisors is an integer number (4290913354680).

Almost surely, 2^{505321000654470} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505321000654470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (823855364098560).

505321000654470 is an abundant number, since it is smaller than the sum of its proper divisors (1142389727542650).

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

505321000654470 is a wasteful number, since it uses less digits than its factorization.

505321000654470 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8244800 (or 8244787 counting only the distinct ones).

The product of its (nonzero) digits is 504000, while the sum is 42.

Adding to 505321000654470 its reverse (74456000123505), we get a palindrome (579777000777975).

The spelling of 505321000654470 in words is "five hundred five trillion, three hundred twenty-one billion, six hundred fifty-four thousand, four hundred seventy".