127243410206442 has 16 divisors (see below), whose sum is σ = 254688954518880. Its totient is φ = 42380781051152.

The previous prime is 127243410206441. The next prime is 127243410206543. The reversal of 127243410206442 is 244602014342721.

It is a happy number.

It is a super-3 number, since 3×127243410206442³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 127243410206394 and 127243410206403.

It is not an unprimeable number, because it can be changed into a prime (127243410206441) 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, 8422246233 + ... + 8422261340.

It is an arithmetic number, because the mean of its divisors is an integer number (15918059657430).

Almost surely, 2^{127243410206442} is an apocalyptic number.

127243410206442 is an abundant number, since it is smaller than the sum of its proper divisors (127445544312438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

127243410206442 is a wasteful number, since it uses less digits than its factorization.

127243410206442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16844508837.

The product of its (nonzero) digits is 516096, while the sum is 42.

The spelling of 127243410206442 in words is "one hundred twenty-seven trillion, two hundred forty-three billion, four hundred ten million, two hundred six thousand, four hundred forty-two".