127080842257 has 8 divisors (see below), whose sum is σ = 127437177384. Its totient is φ = 126724591488.

The previous prime is 127080842249. The next prime is 127080842267. The reversal of 127080842257 is 752248080721.

It is a happy number.

It is a Cunningham number, because it is equal to 356484²+1.

It can be written as a sum of positive squares in 4 ways, for example, as 69076454976 + 58004387281 = 262824^2 + 240841^2 .

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 127080842257 - 2³ = 127080842249 is a prime.

It is a super-2 number, since 2×127080842257² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127080842267) 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, 4122333 + ... + 4153045.

It is an arithmetic number, because the mean of its divisors is an integer number (15929647173).

Almost surely, 2^127080842257 is an apocalyptic number.

It is an amenable number.

127080842257 is a deficient number, since it is larger than the sum of its proper divisors (356335127).

127080842257 is a wasteful number, since it uses less digits than its factorization.

127080842257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42179.

The product of its (nonzero) digits is 501760, while the sum is 46.

The spelling of 127080842257 in words is "one hundred twenty-seven billion, eighty million, eight hundred forty-two thousand, two hundred fifty-seven".