505213012144 has 20 divisors (see below), whose sum is σ = 978941339280. Its totient is φ = 252582989120.

The previous prime is 505213012123. The next prime is 505213012169. The reversal of 505213012144 is 441210312505.

It is a super-2 number, since 2×505213012144² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291924 + ... + 1636915.

It is an arithmetic number, because the mean of its divisors is an integer number (48947066964).

Almost surely, 2^505213012144 is an apocalyptic number.

It is an amenable number.

505213012144 is a deficient number, since it is larger than the sum of its proper divisors (473728327136).

505213012144 is a wasteful number, since it uses less digits than its factorization.

505213012144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2939628 (or 2939622 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 505213012144 its reverse (441210312505), we get a palindrome (946423324649).

The spelling of 505213012144 in words is "five hundred five billion, two hundred thirteen million, twelve thousand, one hundred forty-four".