505615043313 has 36 divisors (see below), whose sum is σ = 749182765968. Its totient is φ = 328587246000.

The previous prime is 505615043279. The next prime is 505615043327. The reversal of 505615043313 is 313340516505.

505615043313 is a `hidden beast` number, since 5 + 0 + 5 + 615 + 0 + 4 + 3 + 31 + 3 = 666.

It is not a de Polignac number, because 505615043313 - 2⁸ = 505615043057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505615043393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4939470 + ... + 5040792.

It is an arithmetic number, because the mean of its divisors is an integer number (20810632388).

Almost surely, 2^505615043313 is an apocalyptic number.

It is an amenable number.

505615043313 is a deficient number, since it is larger than the sum of its proper divisors (243567722655).

505615043313 is a wasteful number, since it uses less digits than its factorization.

505615043313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101674 (or 101624 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

Adding to 505615043313 its reverse (313340516505), we get a palindrome (818955559818).

The spelling of 505615043313 in words is "five hundred five billion, six hundred fifteen million, forty-three thousand, three hundred thirteen".