26540600057 has 2 divisors, whose sum is σ = 26540600058. Its totient is φ = 26540600056.

The previous prime is 26540600017. The next prime is 26540600063. The reversal of 26540600057 is 75000604562.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19507429561 + 7033170496 = 139669^2 + 83864^2 .

It is a cyclic number.

It is not a de Polignac number, because 26540600057 - 2⁶ = 26540599993 is a prime.

It is not a weakly prime, because it can be changed into another prime (26540600017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13270300028 + 13270300029.

It is an arithmetic number, because the mean of its divisors is an integer number (13270300029).

Almost surely, 2^26540600057 is an apocalyptic number.

It is an amenable number.

26540600057 is a deficient number, since it is larger than the sum of its proper divisors (1).

26540600057 is an equidigital number, since it uses as much as digits as its factorization.

26540600057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 35.

The spelling of 26540600057 in words is "twenty-six billion, five hundred forty million, six hundred thousand, fifty-seven".