1018342668425 has 12 divisors (see below), whose sum is σ = 1275762900636. Its totient is φ = 806275430400.

The previous prime is 1018342668389. The next prime is 1018342668449. The reversal of 1018342668425 is 5248662438101.

It can be written as a sum of positive squares in 6 ways, for example, as 8623165321 + 1009719503104 = 92861^2 + 1004848^2 .

It is not a de Polignac number, because 1018342668425 - 2⁸ = 1018342668169 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 209965136 + ... + 209969985.

It is an arithmetic number, because the mean of its divisors is an integer number (106313575053).

Almost surely, 2^{1018342668425} is an apocalyptic number.

It is an amenable number.

1018342668425 is a deficient number, since it is larger than the sum of its proper divisors (257420232211).

1018342668425 is an equidigital number, since it uses as much as digits as its factorization.

1018342668425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419935228 (or 419935223 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 1018342668425 in words is "one trillion, eighteen billion, three hundred forty-two million, six hundred sixty-eight thousand, four hundred twenty-five".