127127752565 has 8 divisors (see below), whose sum is σ = 166421785248. Its totient is φ = 92456547280.

The previous prime is 127127752481. The next prime is 127127752579. The reversal of 127127752565 is 565257721721.

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

It is not a de Polignac number, because 127127752565 - 2¹⁴ = 127127736181 is a prime.

It is a super-2 number, since 2×127127752565² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1155706787 + ... + 1155706896.

It is an arithmetic number, because the mean of its divisors is an integer number (20802723156).

Almost surely, 2^127127752565 is an apocalyptic number.

It is an amenable number.

127127752565 is a deficient number, since it is larger than the sum of its proper divisors (39294032683).

127127752565 is a wasteful number, since it uses less digits than its factorization.

127127752565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311413699.

The product of its digits is 2058000, while the sum is 50.

The spelling of 127127752565 in words is "one hundred twenty-seven billion, one hundred twenty-seven million, seven hundred fifty-two thousand, five hundred sixty-five".