195946045387 has 2 divisors, whose sum is σ = 195946045388. Its totient is φ = 195946045386.

The previous prime is 195946045381. The next prime is 195946045429. The reversal of 195946045387 is 783540649591.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 195946045387 - 2¹¹ = 195946043339 is a prime.

It is not a weakly prime, because it can be changed into another prime (195946045381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97973022693 + 97973022694.

It is an arithmetic number, because the mean of its divisors is an integer number (97973022694).

Almost surely, 2^195946045387 is an apocalyptic number.

195946045387 is a deficient number, since it is larger than the sum of its proper divisors (1).

195946045387 is an equidigital number, since it uses as much as digits as its factorization.

195946045387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 195946045387 in words is "one hundred ninety-five billion, nine hundred forty-six million, forty-five thousand, three hundred eighty-seven".