509868286619 has 2 divisors, whose sum is σ = 509868286620. Its totient is φ = 509868286618.

The previous prime is 509868286607. The next prime is 509868286661. The reversal of 509868286619 is 916682868905.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-509868286619 is a prime.

It is a super-2 number, since 2×509868286619² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (509868286699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 254934143309 + 254934143310.

It is an arithmetic number, because the mean of its divisors is an integer number (254934143310).

Almost surely, 2^509868286619 is an apocalyptic number.

509868286619 is a deficient number, since it is larger than the sum of its proper divisors (1).

509868286619 is an equidigital number, since it uses as much as digits as its factorization.

509868286619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 89579520, while the sum is 68.

It can be divided in two parts, 509868286 and 619, that added together give a palindrome (509868905).

The spelling of 509868286619 in words is "five hundred nine billion, eight hundred sixty-eight million, two hundred eighty-six thousand, six hundred nineteen".