325713601649 has 2 divisors, whose sum is σ = 325713601650. Its totient is φ = 325713601648.

The previous prime is 325713601637. The next prime is 325713601669. The reversal of 325713601649 is 946106317523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 322092571024 + 3621030625 = 567532^2 + 60175^2 .

It is a cyclic number.

It is not a de Polignac number, because 325713601649 - 2⁸ = 325713601393 is a prime.

It is not a weakly prime, because it can be changed into another prime (325713601669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162856800824 + 162856800825.

It is an arithmetic number, because the mean of its divisors is an integer number (162856800825).

Almost surely, 2^325713601649 is an apocalyptic number.

It is an amenable number.

325713601649 is a deficient number, since it is larger than the sum of its proper divisors (1).

325713601649 is an equidigital number, since it uses as much as digits as its factorization.

325713601649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 816480, while the sum is 47.

The spelling of 325713601649 in words is "three hundred twenty-five billion, seven hundred thirteen million, six hundred one thousand, six hundred forty-nine".