517381334663 has 8 divisors (see below), whose sum is σ = 547097179776. Its totient is φ = 488479622400.

The previous prime is 517381334611. The next prime is 517381334689. The reversal of 517381334663 is 366433183715.

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 517381334663 - 2⁶ = 517381334599 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 (517381334693) 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, 203531906 + ... + 203534447.

It is an arithmetic number, because the mean of its divisors is an integer number (68387147472).

Almost surely, 2^517381334663 is an apocalyptic number.

517381334663 is a deficient number, since it is larger than the sum of its proper divisors (29715845113).

517381334663 is a wasteful number, since it uses less digits than its factorization.

517381334663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407066425.

The product of its digits is 3265920, while the sum is 50.

The spelling of 517381334663 in words is "five hundred seventeen billion, three hundred eighty-one million, three hundred thirty-four thousand, six hundred sixty-three".