505787497344 has 256 divisors, whose sum is σ = 1504165032000. Its totient is φ = 167314194432.

The previous prime is 505787497339. The next prime is 505787497361. The reversal of 505787497344 is 443794787505.

505787497344 is a `hidden beast` number, since 50 + 57 + 8 + 7 + 497 + 3 + 44 = 666.

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, 411543322 + ... + 411544550.

Almost surely, 2^505787497344 is an apocalyptic number.

505787497344 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505787497344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (752082516000).

505787497344 is an abundant number, since it is smaller than the sum of its proper divisors (998377534656).

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

505787497344 is a wasteful number, since it uses less digits than its factorization.

505787497344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2062 (or 2044 counting only the distinct ones).

The product of its (nonzero) digits is 118540800, while the sum is 63.

The spelling of 505787497344 in words is "five hundred five billion, seven hundred eighty-seven million, four hundred ninety-seven thousand, three hundred forty-four".