127680057 has 20 divisors (see below), whose sum is σ = 200772880. Its totient is φ = 80639064.

The previous prime is 127680053. The next prime is 127680073. The reversal of 127680057 is 750086721.

It is not a de Polignac number, because 127680057 - 2² = 127680053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127680053) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39943 + ... + 43020.

It is an arithmetic number, because the mean of its divisors is an integer number (10038644).

Almost surely, 2^127680057 is an apocalyptic number.

It is an amenable number.

127680057 is a deficient number, since it is larger than the sum of its proper divisors (73092823).

127680057 is an equidigital number, since it uses as much as digits as its factorization.

127680057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82994 (or 82985 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 127680057 is about 11299.5600356828. The cubic root of 127680057 is about 503.5481707424.

The spelling of 127680057 in words is "one hundred twenty-seven million, six hundred eighty thousand, fifty-seven".