57128468113 has 2 divisors, whose sum is σ = 57128468114. Its totient is φ = 57128468112.

The previous prime is 57128468099. The next prime is 57128468153. The reversal of 57128468113 is 31186482175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40711939984 + 16416528129 = 201772^2 + 128127^2 .

It is a cyclic number.

It is not a de Polignac number, because 57128468113 - 2⁹ = 57128467601 is a prime.

It is not a weakly prime, because it can be changed into another prime (57128468153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28564234056 + 28564234057.

It is an arithmetic number, because the mean of its divisors is an integer number (28564234057).

Almost surely, 2^57128468113 is an apocalyptic number.

It is an amenable number.

57128468113 is a deficient number, since it is larger than the sum of its proper divisors (1).

57128468113 is an equidigital number, since it uses as much as digits as its factorization.

57128468113 is an evil number, because the sum of its binary digits is even.

The product of its digits is 322560, while the sum is 46.

The spelling of 57128468113 in words is "fifty-seven billion, one hundred twenty-eight million, four hundred sixty-eight thousand, one hundred thirteen".