195246650813 has 2 divisors, whose sum is σ = 195246650814. Its totient is φ = 195246650812.

The previous prime is 195246650801. The next prime is 195246650897. The reversal of 195246650813 is 318056642591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195114791524 + 131859289 = 441718^2 + 11483^2 .

It is a cyclic number.

It is not a de Polignac number, because 195246650813 - 2¹⁸ = 195246388669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (195246650213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97623325406 + 97623325407.

It is an arithmetic number, because the mean of its divisors is an integer number (97623325407).

Almost surely, 2^195246650813 is an apocalyptic number.

It is an amenable number.

195246650813 is a deficient number, since it is larger than the sum of its proper divisors (1).

195246650813 is an equidigital number, since it uses as much as digits as its factorization.

195246650813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 195246650813 in words is "one hundred ninety-five billion, two hundred forty-six million, six hundred fifty thousand, eight hundred thirteen".