198624567329 has 2 divisors, whose sum is σ = 198624567330. Its totient is φ = 198624567328.

The previous prime is 198624567293. The next prime is 198624567331. The reversal of 198624567329 is 923765426891.

Together with previous prime (198624567293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198624422929 + 144400 = 445673^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 198624567329 - 2¹² = 198624563233 is a prime.

Together with 198624567331, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198624567359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99312283664 + 99312283665.

It is an arithmetic number, because the mean of its divisors is an integer number (99312283665).

Almost surely, 2^198624567329 is an apocalyptic number.

It is an amenable number.

198624567329 is a deficient number, since it is larger than the sum of its proper divisors (1).

198624567329 is an equidigital number, since it uses as much as digits as its factorization.

198624567329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 39191040, while the sum is 62.

The spelling of 198624567329 in words is "one hundred ninety-eight billion, six hundred twenty-four million, five hundred sixty-seven thousand, three hundred twenty-nine".