511399472641 has 2 divisors, whose sum is σ = 511399472642. Its totient is φ = 511399472640.

The previous prime is 511399472599. The next prime is 511399472671. The reversal of 511399472641 is 146274993115.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319568612416 + 191830860225 = 565304^2 + 437985^2 .

It is a cyclic number.

It is not a de Polignac number, because 511399472641 - 2⁷ = 511399472513 is a prime.

It is not a weakly prime, because it can be changed into another prime (511399472671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255699736320 + 255699736321.

It is an arithmetic number, because the mean of its divisors is an integer number (255699736321).

Almost surely, 2^511399472641 is an apocalyptic number.

It is an amenable number.

511399472641 is a deficient number, since it is larger than the sum of its proper divisors (1).

511399472641 is an equidigital number, since it uses as much as digits as its factorization.

511399472641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The spelling of 511399472641 in words is "five hundred eleven billion, three hundred ninety-nine million, four hundred seventy-two thousand, six hundred forty-one".