505351406460 has 96 divisors (see below), whose sum is σ = 1449719212032. Its totient is φ = 131453268480.

The previous prime is 505351406459. The next prime is 505351406471. The reversal of 505351406460 is 64604153505.

It is a super-2 number, since 2×505351406460² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22382097 + ... + 22404663.

It is an arithmetic number, because the mean of its divisors is an integer number (15101241792).

Almost surely, 2^505351406460 is an apocalyptic number.

It is an amenable number.

505351406460 is an abundant number, since it is smaller than the sum of its proper divisors (944367805572).

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

505351406460 is a wasteful number, since it uses less digits than its factorization.

505351406460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31723 (or 31721 counting only the distinct ones).

The product of its (nonzero) digits is 216000, while the sum is 39.

Adding to 505351406460 its reverse (64604153505), we get a palindrome (569955559965).

The spelling of 505351406460 in words is "five hundred five billion, three hundred fifty-one million, four hundred six thousand, four hundred sixty".