127809375532 has 12 divisors (see below), whose sum is σ = 224801771040. Its totient is φ = 63580298096.

The previous prime is 127809375509. The next prime is 127809375553. The reversal of 127809375532 is 235573908721.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 127809375532.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81096532 + ... + 81098107.

It is an arithmetic number, because the mean of its divisors is an integer number (18733480920).

Almost surely, 2^127809375532 is an apocalyptic number.

It is an amenable number.

127809375532 is a deficient number, since it is larger than the sum of its proper divisors (96992395508).

127809375532 is a wasteful number, since it uses less digits than its factorization.

127809375532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162194840 (or 162194838 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 127809375532 in words is "one hundred twenty-seven billion, eight hundred nine million, three hundred seventy-five thousand, five hundred thirty-two".