500365121549 has 2 divisors, whose sum is σ = 500365121550. Its totient is φ = 500365121548.

The previous prime is 500365121461. The next prime is 500365121593. The reversal of 500365121549 is 945121563005.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466874291524 + 33490830025 = 683282^2 + 183005^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-500365121549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (500365124549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250182560774 + 250182560775.

It is an arithmetic number, because the mean of its divisors is an integer number (250182560775).

Almost surely, 2^500365121549 is an apocalyptic number.

It is an amenable number.

500365121549 is a deficient number, since it is larger than the sum of its proper divisors (1).

500365121549 is an equidigital number, since it uses as much as digits as its factorization.

500365121549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 500365121549 in words is "five hundred billion, three hundred sixty-five million, one hundred twenty-one thousand, five hundred forty-nine".