505722170712 has 128 divisors (see below), whose sum is σ = 1428229209600. Its totient is φ = 149106925440.

The previous prime is 505722170699. The next prime is 505722170717. The reversal of 505722170712 is 217071227505.

It is a super-3 number, since 3×505722170712³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505722170717) 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, 967989 + ... + 1395867.

It is an arithmetic number, because the mean of its divisors is an integer number (11158040700).

Almost surely, 2^505722170712 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 505722170712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (714114604800).

505722170712 is an abundant number, since it is smaller than the sum of its proper divisors (922507038888).

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

505722170712 is a wasteful number, since it uses less digits than its factorization.

505722170712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427958 (or 427932 counting only the distinct ones).

The product of its (nonzero) digits is 68600, while the sum is 39.

The spelling of 505722170712 in words is "five hundred five billion, seven hundred twenty-two million, one hundred seventy thousand, seven hundred twelve".