127106512644 has 24 divisors (see below), whose sum is σ = 296648620128. Its totient is φ = 42359300800.

The previous prime is 127106512639. The next prime is 127106512657. The reversal of 127106512644 is 446215601721.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1136457 + ... + 1243280.

It is an arithmetic number, because the mean of its divisors is an integer number (12360359172).

Almost surely, 2^127106512644 is an apocalyptic number.

It is an amenable number.

127106512644 is an abundant number, since it is smaller than the sum of its proper divisors (169542107484).

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

127106512644 is a wasteful number, since it uses less digits than its factorization.

127106512644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384195 (or 2384193 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 127106512644 in words is "one hundred twenty-seven billion, one hundred six million, five hundred twelve thousand, six hundred forty-four".