512493219561 has 16 divisors (see below), whose sum is σ = 684907315200. Its totient is φ = 340871516688.

The previous prime is 512493219551. The next prime is 512493219569. The reversal of 512493219561 is 165912394215.

It is not a de Polignac number, because 512493219561 - 2¹¹ = 512493217513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512493219561.

It is not an unprimeable number, because it can be changed into a prime (512493219569) 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, 2235370 + ... + 2453948.

It is an arithmetic number, because the mean of its divisors is an integer number (42806707200).

Almost surely, 2^512493219561 is an apocalyptic number.

It is an amenable number.

512493219561 is a deficient number, since it is larger than the sum of its proper divisors (172414095639).

512493219561 is a wasteful number, since it uses less digits than its factorization.

512493219561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220388.

The product of its digits is 583200, while the sum is 48.

The spelling of 512493219561 in words is "five hundred twelve billion, four hundred ninety-three million, two hundred nineteen thousand, five hundred sixty-one".