512405430623 has 8 divisors (see below), whose sum is σ = 542576456928. Its totient is φ = 482237685504.

The previous prime is 512405430619. The next prime is 512405430697. The reversal of 512405430623 is 326034504215.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 512405430623 - 2² = 512405430619 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 (512405400623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495086 + ... + 1126907.

It is an arithmetic number, because the mean of its divisors is an integer number (67822057116).

Almost surely, 2^512405430623 is an apocalyptic number.

512405430623 is a deficient number, since it is larger than the sum of its proper divisors (30171026305).

512405430623 is a wasteful number, since it uses less digits than its factorization.

512405430623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640593.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 512405430623 its reverse (326034504215), we get a palindrome (838439934838).

The spelling of 512405430623 in words is "five hundred twelve billion, four hundred five million, four hundred thirty thousand, six hundred twenty-three".