127709249752 has 32 divisors (see below), whose sum is σ = 273674419200. Its totient is φ = 54730187424.

The previous prime is 127709249743. The next prime is 127709249783. The reversal of 127709249752 is 257942907721.

It is a junction number, because it is equal to n+sod(n) for n = 127709249693 and 127709249702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2115199 + ... + 2174737.

It is an arithmetic number, because the mean of its divisors is an integer number (8552325600).

Almost surely, 2^127709249752 is an apocalyptic number.

It is an amenable number.

127709249752 is an abundant number, since it is smaller than the sum of its proper divisors (145965169448).

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

127709249752 is a wasteful number, since it uses less digits than its factorization.

127709249752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97855 (or 97851 counting only the distinct ones).

The product of its (nonzero) digits is 4445280, while the sum is 55.

The spelling of 127709249752 in words is "one hundred twenty-seven billion, seven hundred nine million, two hundred forty-nine thousand, seven hundred fifty-two".