512640452517 has 4 divisors (see below), whose sum is σ = 683520603360. Its totient is φ = 341760301676.

The previous prime is 512640452503. The next prime is 512640452551. The reversal of 512640452517 is 715254046215.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 512640452517 - 2³⁰ = 511566710693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512640452117) 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, 85440075417 + ... + 85440075422.

It is an arithmetic number, because the mean of its divisors is an integer number (170880150840).

Almost surely, 2^512640452517 is an apocalyptic number.

It is an amenable number.

512640452517 is a deficient number, since it is larger than the sum of its proper divisors (170880150843).

512640452517 is a wasteful number, since it uses less digits than its factorization.

512640452517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170880150842.

The product of its (nonzero) digits is 336000, while the sum is 42.

The spelling of 512640452517 in words is "five hundred twelve billion, six hundred forty million, four hundred fifty-two thousand, five hundred seventeen".