505860695797 has 2 divisors, whose sum is σ = 505860695798. Its totient is φ = 505860695796.

The previous prime is 505860695777. The next prime is 505860695819. The reversal of 505860695797 is 797596068505.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 308026110001 + 197834585796 = 555001^2 + 444786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505860695797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505860695777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252930347898 + 252930347899.

It is an arithmetic number, because the mean of its divisors is an integer number (252930347899).

Almost surely, 2^505860695797 is an apocalyptic number.

It is an amenable number.

505860695797 is a deficient number, since it is larger than the sum of its proper divisors (1).

505860695797 is an equidigital number, since it uses as much as digits as its factorization.

505860695797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 142884000, while the sum is 67.

The spelling of 505860695797 in words is "five hundred five billion, eight hundred sixty million, six hundred ninety-five thousand, seven hundred ninety-seven".