505142013513443 has 4 divisors (see below), whose sum is σ = 507680415591600. Its totient is φ = 502603611435288.

The previous prime is 505142013513439. The next prime is 505142013513457. The reversal of 505142013513443 is 344315310241505.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 505142013513443 - 2² = 505142013513439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505142013513443.

It is not an unprimeable number, because it can be changed into a prime (505142013513463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1269201038780 + ... + 1269201039177.

It is an arithmetic number, because the mean of its divisors is an integer number (126920103897900).

Almost surely, 2^{505142013513443} is an apocalyptic number.

505142013513443 is a deficient number, since it is larger than the sum of its proper divisors (2538402078157).

505142013513443 is a wasteful number, since it uses less digits than its factorization.

505142013513443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2538402078156.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 505142013513443 its reverse (344315310241505), we get a palindrome (849457323754948).

The spelling of 505142013513443 in words is "five hundred five trillion, one hundred forty-two billion, thirteen million, five hundred thirteen thousand, four hundred forty-three".