7135488378257 has 2 divisors, whose sum is σ = 7135488378258. Its totient is φ = 7135488378256.

The previous prime is 7135488378199. The next prime is 7135488378331. The reversal of 7135488378257 is 7528738845317.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7080543143041 + 54945235216 = 2660929^2 + 234404^2 .

It is a cyclic number.

It is not a de Polignac number, because 7135488378257 - 2⁴⁰ = 6035976750481 is a prime.

It is a super-3 number, since 3×7135488378257³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (7135488278257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3567744189128 + 3567744189129.

It is an arithmetic number, because the mean of its divisors is an integer number (3567744189129).

Almost surely, 2^{7135488378257} is an apocalyptic number.

It is an amenable number.

7135488378257 is a deficient number, since it is larger than the sum of its proper divisors (1).

7135488378257 is an equidigital number, since it uses as much as digits as its factorization.

7135488378257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 316108800, while the sum is 68.

The spelling of 7135488378257 in words is "seven trillion, one hundred thirty-five billion, four hundred eighty-eight million, three hundred seventy-eight thousand, two hundred fifty-seven".