505354452450443 has 16 divisors (see below), whose sum is σ = 509632097587200. Its totient is φ = 501098991805920.

The previous prime is 505354452450437. The next prime is 505354452450559. The reversal of 505354452450443 is 344054254453505.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505354452450443 is a prime.

It is a super-2 number, since 2×505354452450443² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505354452450403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50594978 + ... + 59754168.

It is an arithmetic number, because the mean of its divisors is an integer number (31852006099200).

Almost surely, 2^{505354452450443} is an apocalyptic number.

505354452450443 is a deficient number, since it is larger than the sum of its proper divisors (4277645136757).

505354452450443 is a wasteful number, since it uses less digits than its factorization.

505354452450443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9160402.

The product of its (nonzero) digits is 57600000, while the sum is 53.

The spelling of 505354452450443 in words is "five hundred five trillion, three hundred fifty-four billion, four hundred fifty-two million, four hundred fifty thousand, four hundred forty-three".