505000768919 has 2 divisors, whose sum is σ = 505000768920. Its totient is φ = 505000768918.

The previous prime is 505000768849. The next prime is 505000768949. The reversal of 505000768919 is 919867000505.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505000768919 is a prime.

It is a super-2 number, since 2×505000768919² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (505000768949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 252500384459 + 252500384460.

It is an arithmetic number, because the mean of its divisors is an integer number (252500384460).

Almost surely, 2^505000768919 is an apocalyptic number.

505000768919 is a deficient number, since it is larger than the sum of its proper divisors (1).

505000768919 is an equidigital number, since it uses as much as digits as its factorization.

505000768919 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 50.

The spelling of 505000768919 in words is "five hundred five billion, seven hundred sixty-eight thousand, nine hundred nineteen".