127964866078 has 32 divisors (see below), whose sum is σ = 225452966400. Its totient is φ = 53322979104.

The previous prime is 127964866027. The next prime is 127964866121. The reversal of 127964866078 is 870668469721.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671103 + ... + 840421.

It is an arithmetic number, because the mean of its divisors is an integer number (7045405200).

Almost surely, 2^127964866078 is an apocalyptic number.

127964866078 is a deficient number, since it is larger than the sum of its proper divisors (97488100322).

127964866078 is a wasteful number, since it uses less digits than its factorization.

127964866078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170824.

The product of its (nonzero) digits is 48771072, while the sum is 64.

The spelling of 127964866078 in words is "one hundred twenty-seven billion, nine hundred sixty-four million, eight hundred sixty-six thousand, seventy-eight".