1018326608653 has 2 divisors, whose sum is σ = 1018326608654. Its totient is φ = 1018326608652.

The previous prime is 1018326608639. The next prime is 1018326608687. The reversal of 1018326608653 is 3568066238101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 904958371849 + 113368236804 = 951293^2 + 336702^2 .

It is a cyclic number.

It is not a de Polignac number, because 1018326608653 - 2⁹ = 1018326608141 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1018326608597 and 1018326608606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1018326608603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 509163304326 + 509163304327.

It is an arithmetic number, because the mean of its divisors is an integer number (509163304327).

Almost surely, 2^{1018326608653} is an apocalyptic number.

It is an amenable number.

1018326608653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1018326608653 is an equidigital number, since it uses as much as digits as its factorization.

1018326608653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1244160, while the sum is 49.

The spelling of 1018326608653 in words is "one trillion, eighteen billion, three hundred twenty-six million, six hundred eight thousand, six hundred fifty-three".