500505687645471 has 16 divisors (see below), whose sum is σ = 759575027322720. Its totient is φ = 325532154565440.

The previous prime is 500505687645463. The next prime is 500505687645479. The reversal of 500505687645471 is 174546786505005.

It is a happy number.

500505687645471 is a `hidden beast` number, since 5 + 0 + 0 + 5 + 0 + 5 + 6 + 87 + 6 + 4 + 547 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (500505687645463) and next prime (500505687645479).

It is not a de Polignac number, because 500505687645471 - 2³ = 500505687645463 is a prime.

It is a super-3 number, since 3×500505687645471³ (a number of 45 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 500505687645399 and 500505687645408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500505687645479) 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, 226063995120 + ... + 226063997333.

It is an arithmetic number, because the mean of its divisors is an integer number (47473439207670).

Almost surely, 2^{500505687645471} is an apocalyptic number.

500505687645471 is a deficient number, since it is larger than the sum of its proper divisors (259069339677249).

500505687645471 is a wasteful number, since it uses less digits than its factorization.

500505687645471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452127992503 (or 452127992497 counting only the distinct ones).

The product of its (nonzero) digits is 141120000, while the sum is 63.

The spelling of 500505687645471 in words is "five hundred trillion, five hundred five billion, six hundred eighty-seven million, six hundred forty-five thousand, four hundred seventy-one".