195430227659 has 2 divisors, whose sum is σ = 195430227660. Its totient is φ = 195430227658.

The previous prime is 195430227611. The next prime is 195430227673. The reversal of 195430227659 is 956722034591.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195430227659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 195430227659.

It is not a weakly prime, because it can be changed into another prime (195430227689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97715113829 + 97715113830.

It is an arithmetic number, because the mean of its divisors is an integer number (97715113830).

Almost surely, 2^195430227659 is an apocalyptic number.

195430227659 is a deficient number, since it is larger than the sum of its proper divisors (1).

195430227659 is an equidigital number, since it uses as much as digits as its factorization.

195430227659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4082400, while the sum is 53.

The spelling of 195430227659 in words is "one hundred ninety-five billion, four hundred thirty million, two hundred twenty-seven thousand, six hundred fifty-nine".