505774737660323 has 2 divisors, whose sum is σ = 505774737660324. Its totient is φ = 505774737660322.

The previous prime is 505774737660197. The next prime is 505774737660349. The reversal of 505774737660323 is 323066737477505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 505774737660323 - 2¹⁴ = 505774737643939 is a prime.

It is a super-2 number, since 2×505774737660323² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 505774737660323.

It is not a weakly prime, because it can be changed into another prime (505774737660523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252887368830161 + 252887368830162.

It is an arithmetic number, because the mean of its divisors is an integer number (252887368830162).

Almost surely, 2^{505774737660323} is an apocalyptic number.

505774737660323 is a deficient number, since it is larger than the sum of its proper divisors (1).

505774737660323 is an equidigital number, since it uses as much as digits as its factorization.

505774737660323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466754400, while the sum is 65.

The spelling of 505774737660323 in words is "five hundred five trillion, seven hundred seventy-four billion, seven hundred thirty-seven million, six hundred sixty thousand, three hundred twenty-three".