127715957707 has 8 divisors (see below), whose sum is σ = 137545103360. Its totient is φ = 117887503680.

The previous prime is 127715957687. The next prime is 127715957713. The reversal of 127715957707 is 707759517721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127715957707 is a prime.

It is a super-2 number, since 2×127715957707² (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 (127715957207) 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, 248719 + ... + 563287.

It is an arithmetic number, because the mean of its divisors is an integer number (17193137920).

Almost surely, 2^127715957707 is an apocalyptic number.

127715957707 is a deficient number, since it is larger than the sum of its proper divisors (9829145653).

127715957707 is a wasteful number, since it uses less digits than its factorization.

127715957707 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345813.

The product of its (nonzero) digits is 7563150, while the sum is 58.

The spelling of 127715957707 in words is "one hundred twenty-seven billion, seven hundred fifteen million, nine hundred fifty-seven thousand, seven hundred seven".