127243522105673 has 8 divisors (see below), whose sum is σ = 127756183731336. Its totient is φ = 126731832352000.

The previous prime is 127243522105649. The next prime is 127243522105691. The reversal of 127243522105673 is 376501225342721.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36491167987264 + 90752354118409 = 6040792^2 + 9526403^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127243522105673 - 2²⁶ = 127243454996809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127243522105573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242705618 + ... + 243229323.

It is an arithmetic number, because the mean of its divisors is an integer number (15969522966417).

Almost surely, 2^{127243522105673} is an apocalyptic number.

It is an amenable number.

127243522105673 is a deficient number, since it is larger than the sum of its proper divisors (512661625663).

127243522105673 is an equidigital number, since it uses as much as digits as its factorization.

127243522105673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485935995.

The product of its (nonzero) digits is 4233600, while the sum is 50.

The spelling of 127243522105673 in words is "one hundred twenty-seven trillion, two hundred forty-three billion, five hundred twenty-two million, one hundred five thousand, six hundred seventy-three".