127572845477 has 24 divisors (see below), whose sum is σ = 160378618176. Its totient is φ = 99406533600.

The previous prime is 127572845443. The next prime is 127572845537. The reversal of 127572845477 is 774548275721.

It is not a de Polignac number, because 127572845477 - 2²⁰ = 127571796901 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127572845977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1070777 + ... + 1183937.

It is an arithmetic number, because the mean of its divisors is an integer number (6682442424).

Almost surely, 2^127572845477 is an apocalyptic number.

It is an amenable number.

127572845477 is a deficient number, since it is larger than the sum of its proper divisors (32805772699).

127572845477 is an frugal number, since it uses more digits than its factorization.

127572845477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113223 (or 113179 counting only the distinct ones).

The product of its digits is 30732800, while the sum is 59.

The spelling of 127572845477 in words is "one hundred twenty-seven billion, five hundred seventy-two million, eight hundred forty-five thousand, four hundred seventy-seven".