127473633609 has 16 divisors (see below), whose sum is σ = 204468986880. Its totient is φ = 69008282640.

The previous prime is 127473633569. The next prime is 127473633619. The reversal of 127473633609 is 906336374721.

It is not a de Polignac number, because 127473633609 - 2⁹ = 127473633097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127473633619) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 159740997 + ... + 159741794.

It is an arithmetic number, because the mean of its divisors is an integer number (12779311680).

Almost surely, 2^127473633609 is an apocalyptic number.

127473633609 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

127473633609 is a deficient number, since it is larger than the sum of its proper divisors (76995353271).

127473633609 is a wasteful number, since it uses less digits than its factorization.

127473633609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319482820.

The product of its (nonzero) digits is 3429216, while the sum is 51.

The spelling of 127473633609 in words is "one hundred twenty-seven billion, four hundred seventy-three million, six hundred thirty-three thousand, six hundred nine".