100195639673 has 2 divisors, whose sum is σ = 100195639674. Its totient is φ = 100195639672.

The previous prime is 100195639637. The next prime is 100195639717. The reversal of 100195639673 is 376936591001.

Together with previous prime (100195639637) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 79612572649 + 20583067024 = 282157^2 + 143468^2 .

It is a cyclic number.

It is not a de Polignac number, because 100195639673 - 2¹⁴ = 100195623289 is a prime.

It is not a weakly prime, because it can be changed into another prime (100195689673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50097819836 + 50097819837.

It is an arithmetic number, because the mean of its divisors is an integer number (50097819837).

Almost surely, 2^100195639673 is an apocalyptic number.

It is an amenable number.

100195639673 is a deficient number, since it is larger than the sum of its proper divisors (1).

100195639673 is an equidigital number, since it uses as much as digits as its factorization.

100195639673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 918540, while the sum is 50.

The spelling of 100195639673 in words is "one hundred billion, one hundred ninety-five million, six hundred thirty-nine thousand, six hundred seventy-three".