510485117647 has 2 divisors, whose sum is σ = 510485117648. Its totient is φ = 510485117646.

The previous prime is 510485117633. The next prime is 510485117651. The reversal of 510485117647 is 746711584015.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-510485117647 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 510485117647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (510488117647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255242558823 + 255242558824.

It is an arithmetic number, because the mean of its divisors is an integer number (255242558824).

Almost surely, 2^510485117647 is an apocalyptic number.

510485117647 is a deficient number, since it is larger than the sum of its proper divisors (1).

510485117647 is an equidigital number, since it uses as much as digits as its factorization.

510485117647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 940800, while the sum is 49.

The spelling of 510485117647 in words is "five hundred ten billion, four hundred eighty-five million, one hundred seventeen thousand, six hundred forty-seven".