260404636057 has 2 divisors, whose sum is σ = 260404636058. Its totient is φ = 260404636056.

The previous prime is 260404636013. The next prime is 260404636099. The reversal of 260404636057 is 750636404062.

260404636057 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256794549001 + 3610087056 = 506749^2 + 60084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260404636057 is a prime.

It is not a weakly prime, because it can be changed into another prime (260404631057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130202318028 + 130202318029.

It is an arithmetic number, because the mean of its divisors is an integer number (130202318029).

Almost surely, 2^260404636057 is an apocalyptic number.

It is an amenable number.

260404636057 is a deficient number, since it is larger than the sum of its proper divisors (1).

260404636057 is an equidigital number, since it uses as much as digits as its factorization.

260404636057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 43.

The spelling of 260404636057 in words is "two hundred sixty billion, four hundred four million, six hundred thirty-six thousand, fifty-seven".