57827857097 has 2 divisors, whose sum is σ = 57827857098. Its totient is φ = 57827857096.

The previous prime is 57827857093. The next prime is 57827857117. The reversal of 57827857097 is 79075872875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42856866361 + 14970990736 = 207019^2 + 122356^2 .

It is a cyclic number.

It is not a de Polignac number, because 57827857097 - 2² = 57827857093 is a prime.

It is a super-2 number, since 2×57827857097² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57827857093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28913928548 + 28913928549.

It is an arithmetic number, because the mean of its divisors is an integer number (28913928549).

Almost surely, 2^57827857097 is an apocalyptic number.

It is an amenable number.

57827857097 is a deficient number, since it is larger than the sum of its proper divisors (1).

57827857097 is an equidigital number, since it uses as much as digits as its factorization.

57827857097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69148800, while the sum is 65.

The spelling of 57827857097 in words is "fifty-seven billion, eight hundred twenty-seven million, eight hundred fifty-seven thousand, ninety-seven".