18453127369 has 2 divisors, whose sum is σ = 18453127370. Its totient is φ = 18453127368.

The previous prime is 18453127349. The next prime is 18453127403. The reversal of 18453127369 is 96372135481.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13343022144 + 5110105225 = 115512^2 + 71485^2 .

It is a cyclic number.

It is not a de Polignac number, because 18453127369 - 2¹¹ = 18453125321 is a prime.

It is a super-2 number, since 2×18453127369² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18453127339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9226563684 + 9226563685.

It is an arithmetic number, because the mean of its divisors is an integer number (9226563685).

Almost surely, 2^18453127369 is an apocalyptic number.

It is an amenable number.

18453127369 is a deficient number, since it is larger than the sum of its proper divisors (1).

18453127369 is an equidigital number, since it uses as much as digits as its factorization.

18453127369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The spelling of 18453127369 in words is "eighteen billion, four hundred fifty-three million, one hundred twenty-seven thousand, three hundred sixty-nine".