1513324311617 has 2 divisors, whose sum is σ = 1513324311618. Its totient is φ = 1513324311616.

The previous prime is 1513324311599. The next prime is 1513324311643. The reversal of 1513324311617 is 7161134233151.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1488536643136 + 24787668481 = 1220056^2 + 157441^2 .

It is a cyclic number.

It is not a de Polignac number, because 1513324311617 - 2⁸ = 1513324311361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1513324361617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756662155808 + 756662155809.

It is an arithmetic number, because the mean of its divisors is an integer number (756662155809).

Almost surely, 2^{1513324311617} is an apocalyptic number.

It is an amenable number.

1513324311617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1513324311617 is an equidigital number, since it uses as much as digits as its factorization.

1513324311617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 38.

Adding to 1513324311617 its reverse (7161134233151), we get a palindrome (8674458544768).

The spelling of 1513324311617 in words is "one trillion, five hundred thirteen billion, three hundred twenty-four million, three hundred eleven thousand, six hundred seventeen".