127857605057 has 32 divisors (see below), whose sum is σ = 163008814080. Its totient is φ = 97542144000.

The previous prime is 127857605033. The next prime is 127857605087. The reversal of 127857605057 is 750506758721.

It is not a de Polignac number, because 127857605057 - 2¹⁰ = 127857604033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (127857605017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1949633 + ... + 2014145.

It is an arithmetic number, because the mean of its divisors is an integer number (5094025440).

Almost surely, 2^127857605057 is an apocalyptic number.

It is an amenable number.

127857605057 is a deficient number, since it is larger than the sum of its proper divisors (35151209023).

127857605057 is a wasteful number, since it uses less digits than its factorization.

127857605057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65313.

The product of its (nonzero) digits is 4116000, while the sum is 53.

The spelling of 127857605057 in words is "one hundred twenty-seven billion, eight hundred fifty-seven million, six hundred five thousand, fifty-seven".