512125221467 has 2 divisors, whose sum is σ = 512125221468. Its totient is φ = 512125221466.

The previous prime is 512125221449. The next prime is 512125221473. The reversal of 512125221467 is 764122521215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 512125221467 - 2⁸ = 512125221211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 512125221467.

It is not a weakly prime, because it can be changed into another prime (512125221967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256062610733 + 256062610734.

It is an arithmetic number, because the mean of its divisors is an integer number (256062610734).

Almost surely, 2^512125221467 is an apocalyptic number.

512125221467 is a deficient number, since it is larger than the sum of its proper divisors (1).

512125221467 is an equidigital number, since it uses as much as digits as its factorization.

512125221467 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 67200, while the sum is 38.

The spelling of 512125221467 in words is "five hundred twelve billion, one hundred twenty-five million, two hundred twenty-one thousand, four hundred sixty-seven".