505421614040 has 128 divisors (see below), whose sum is σ = 1333544929920. Its totient is φ = 168782745600.

The previous prime is 505421614037. The next prime is 505421614067. The reversal of 505421614040 is 40416124505.

It is a junction number, because it is equal to n+sod(n) for n = 505421613988 and 505421614006.

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, 7001330 + ... + 7073150.

It is an arithmetic number, because the mean of its divisors is an integer number (10418319765).

Almost surely, 2^505421614040 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 505421614040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (666772464960).

505421614040 is an abundant number, since it is smaller than the sum of its proper divisors (828123315880).

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

505421614040 is a wasteful number, since it uses less digits than its factorization.

505421614040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72493 (or 72489 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 32.

Adding to 505421614040 its reverse (40416124505), we get a palindrome (545837738545).

The spelling of 505421614040 in words is "five hundred five billion, four hundred twenty-one million, six hundred fourteen thousand, forty".