511353321247 has 2 divisors, whose sum is σ = 511353321248. Its totient is φ = 511353321246.

The previous prime is 511353321239. The next prime is 511353321301. The reversal of 511353321247 is 742123353115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 511353321247 - 2³ = 511353321239 is a prime.

It is a super-2 number, since 2×511353321247² (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 (511353321847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255676660623 + 255676660624.

It is an arithmetic number, because the mean of its divisors is an integer number (255676660624).

Almost surely, 2^511353321247 is an apocalyptic number.

511353321247 is a deficient number, since it is larger than the sum of its proper divisors (1).

511353321247 is an equidigital number, since it uses as much as digits as its factorization.

511353321247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 37.

The spelling of 511353321247 in words is "five hundred eleven billion, three hundred fifty-three million, three hundred twenty-one thousand, two hundred forty-seven".