520143451463 has 4 divisors (see below), whose sum is σ = 525293386728. Its totient is φ = 514993516200.

The previous prime is 520143451453. The next prime is 520143451507. The reversal of 520143451463 is 364154341025.

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 520143451463 - 2⁸ = 520143451207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520143451423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2574967481 + ... + 2574967682.

It is an arithmetic number, because the mean of its divisors is an integer number (131323346682).

Almost surely, 2^520143451463 is an apocalyptic number.

520143451463 is a deficient number, since it is larger than the sum of its proper divisors (5149935265).

520143451463 is a wasteful number, since it uses less digits than its factorization.

520143451463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5149935264.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 520143451463 its reverse (364154341025), we get a palindrome (884297792488).

The spelling of 520143451463 in words is "five hundred twenty billion, one hundred forty-three million, four hundred fifty-one thousand, four hundred sixty-three".