127609866496 has 72 divisors (see below), whose sum is σ = 301148406720. Its totient is φ = 52804061184.

The previous prime is 127609866469. The next prime is 127609866511. The reversal of 127609866496 is 694668906721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175806 + ... + 1279741.

It is an arithmetic number, because the mean of its divisors is an integer number (4182616760).

Almost surely, 2^127609866496 is an apocalyptic number.

127609866496 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

127609866496 is an abundant number, since it is smaller than the sum of its proper divisors (173538540224).

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

127609866496 is an equidigital number, since it uses as much as digits as its factorization.

127609866496 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2455599 (or 2455585 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 127609866496 in words is "one hundred twenty-seven billion, six hundred nine million, eight hundred sixty-six thousand, four hundred ninety-six".