57117656107 has 4 divisors (see below), whose sum is σ = 57118337640. Its totient is φ = 57116974576.

The previous prime is 57117656093. The next prime is 57117656111. The reversal of 57117656107 is 70165671175.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57117656107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57117656117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193978 + ... + 389695.

It is an arithmetic number, because the mean of its divisors is an integer number (14279584410).

Almost surely, 2^57117656107 is an apocalyptic number.

57117656107 is a deficient number, since it is larger than the sum of its proper divisors (681533).

57117656107 is an equidigital number, since it uses as much as digits as its factorization.

57117656107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681532.

The product of its (nonzero) digits is 308700, while the sum is 46.

The spelling of 57117656107 in words is "fifty-seven billion, one hundred seventeen million, six hundred fifty-six thousand, one hundred seven".