511820627473 has 2 divisors, whose sum is σ = 511820627474. Its totient is φ = 511820627472.

The previous prime is 511820627419. The next prime is 511820627477. The reversal of 511820627473 is 374726028115.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 504651110544 + 7169516929 = 710388^2 + 84673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-511820627473 is a prime.

It is not a weakly prime, because it can be changed into another prime (511820627477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255910313736 + 255910313737.

It is an arithmetic number, because the mean of its divisors is an integer number (255910313737).

Almost surely, 2^511820627473 is an apocalyptic number.

It is an amenable number.

511820627473 is a deficient number, since it is larger than the sum of its proper divisors (1).

511820627473 is an equidigital number, since it uses as much as digits as its factorization.

511820627473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 564480, while the sum is 46.

The spelling of 511820627473 in words is "five hundred eleven billion, eight hundred twenty million, six hundred twenty-seven thousand, four hundred seventy-three".