505115510712 has 128 divisors (see below), whose sum is σ = 1324720742400. Its totient is φ = 160194722688.

The previous prime is 505115510707. The next prime is 505115510719. The reversal of 505115510712 is 217015511505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505115510719) 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, 84084813 + ... + 84090819.

It is an arithmetic number, because the mean of its divisors is an integer number (10349380800).

Almost surely, 2^505115510712 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 505115510712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (662360371200).

505115510712 is an abundant number, since it is smaller than the sum of its proper divisors (819605231688).

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

505115510712 is a wasteful number, since it uses less digits than its factorization.

505115510712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6825 (or 6821 counting only the distinct ones).

The product of its (nonzero) digits is 8750, while the sum is 33.

The spelling of 505115510712 in words is "five hundred five billion, one hundred fifteen million, five hundred ten thousand, seven hundred twelve".