1018158459349 has 2 divisors, whose sum is σ = 1018158459350. Its totient is φ = 1018158459348.

The previous prime is 1018158459293. The next prime is 1018158459407. The reversal of 1018158459349 is 9439548518101.

It is an a-pointer prime, because the next prime (1018158459407) can be obtained adding 1018158459349 to its sum of digits (58).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1007915602500 + 10242856849 = 1003950^2 + 101207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1018158459349 - 2⁷ = 1018158459221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1018158459293 and 1018158459302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1018158459449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509079229674 + 509079229675.

It is an arithmetic number, because the mean of its divisors is an integer number (509079229675).

Almost surely, 2^{1018158459349} is an apocalyptic number.

It is an amenable number.

1018158459349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018158459349 is an equidigital number, since it uses as much as digits as its factorization.

1018158459349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6220800, while the sum is 58.

The spelling of 1018158459349 in words is "one trillion, eighteen billion, one hundred fifty-eight million, four hundred fifty-nine thousand, three hundred forty-nine".