127775138007 has 16 divisors (see below), whose sum is σ = 185899956480. Its totient is φ = 77420640000.

The previous prime is 127775138003. The next prime is 127775138041. The reversal of 127775138007 is 700831577721.

It is not a de Polignac number, because 127775138007 - 2² = 127775138003 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127775138003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 332619 + ... + 605132.

It is an arithmetic number, because the mean of its divisors is an integer number (11618747280).

Almost surely, 2^127775138007 is an apocalyptic number.

127775138007 is a deficient number, since it is larger than the sum of its proper divisors (58124818473).

127775138007 is a wasteful number, since it uses less digits than its factorization.

127775138007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941894.

The product of its (nonzero) digits is 576240, while the sum is 48.

The spelling of 127775138007 in words is "one hundred twenty-seven billion, seven hundred seventy-five million, one hundred thirty-eight thousand, seven".