100421745868277 has 2 divisors, whose sum is σ = 100421745868278. Its totient is φ = 100421745868276.

The previous prime is 100421745868231. The next prime is 100421745868289. The reversal of 100421745868277 is 772868547124001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89577725631601 + 10844020236676 = 9464551^2 + 3293026^2 .

It is a cyclic number.

It is not a de Polignac number, because 100421745868277 - 2¹⁴ = 100421745851893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100421745868217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50210872934138 + 50210872934139.

It is an arithmetic number, because the mean of its divisors is an integer number (50210872934139).

Almost surely, 2^{100421745868277} is an apocalyptic number.

It is an amenable number.

100421745868277 is a deficient number, since it is larger than the sum of its proper divisors (1).

100421745868277 is an equidigital number, since it uses as much as digits as its factorization.

100421745868277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42147840, while the sum is 62.

The spelling of 100421745868277 in words is "one hundred trillion, four hundred twenty-one billion, seven hundred forty-five million, eight hundred sixty-eight thousand, two hundred seventy-seven".