512645640245 has 8 divisors (see below), whose sum is σ = 615188513184. Its totient is φ = 410107348944.

The previous prime is 512645640239. The next prime is 512645640271. The reversal of 512645640245 is 542046546215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512645640245 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 512645640196 and 512645640205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 894239 + ... + 1350908.

It is an arithmetic number, because the mean of its divisors is an integer number (76898564148).

Almost surely, 2^512645640245 is an apocalyptic number.

It is an amenable number.

512645640245 is a deficient number, since it is larger than the sum of its proper divisors (102542872939).

512645640245 is a wasteful number, since it uses less digits than its factorization.

512645640245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2290819.

The product of its (nonzero) digits is 1152000, while the sum is 44.

The spelling of 512645640245 in words is "five hundred twelve billion, six hundred forty-five million, six hundred forty thousand, two hundred forty-five".