207313685057 has 2 divisors, whose sum is σ = 207313685058. Its totient is φ = 207313685056.

The previous prime is 207313685021. The next prime is 207313685083. The reversal of 207313685057 is 750586313702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 113652591376 + 93661093681 = 337124^2 + 306041^2 .

It is a cyclic number.

It is not a de Polignac number, because 207313685057 - 2¹² = 207313680961 is a prime.

It is not a weakly prime, because it can be changed into another prime (207313685857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103656842528 + 103656842529.

It is an arithmetic number, because the mean of its divisors is an integer number (103656842529).

Almost surely, 2^207313685057 is an apocalyptic number.

It is an amenable number.

207313685057 is a deficient number, since it is larger than the sum of its proper divisors (1).

207313685057 is an equidigital number, since it uses as much as digits as its factorization.

207313685057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1058400, while the sum is 47.

Adding to 207313685057 its reverse (750586313702), we get a palindrome (957899998759).

The spelling of 207313685057 in words is "two hundred seven billion, three hundred thirteen million, six hundred eighty-five thousand, fifty-seven".