195511028590079 has 2 divisors, whose sum is σ = 195511028590080. Its totient is φ = 195511028590078.

The previous prime is 195511028590057. The next prime is 195511028590109. The reversal of 195511028590079 is 970095820115591.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-195511028590079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195511028590279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97755514295039 + 97755514295040.

It is an arithmetic number, because the mean of its divisors is an integer number (97755514295040).

Almost surely, 2^{195511028590079} is an apocalyptic number.

195511028590079 is a deficient number, since it is larger than the sum of its proper divisors (1).

195511028590079 is an equidigital number, since it uses as much as digits as its factorization.

195511028590079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206000, while the sum is 62.

The spelling of 195511028590079 in words is "one hundred ninety-five trillion, five hundred eleven billion, twenty-eight million, five hundred ninety thousand, seventy-nine".