1453121869609 has 2 divisors, whose sum is σ = 1453121869610. Its totient is φ = 1453121869608.

The previous prime is 1453121869553. The next prime is 1453121869613. The reversal of 1453121869609 is 9069681213541.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1241379245584 + 211742624025 = 1114172^2 + 460155^2 .

It is a cyclic number.

It is not a de Polignac number, because 1453121869609 - 2⁷ = 1453121869481 is a prime.

It is a super-2 number, since 2×1453121869609² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1453121869609.

It is not a weakly prime, because it can be changed into another prime (1453121869649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 726560934804 + 726560934805.

It is an arithmetic number, because the mean of its divisors is an integer number (726560934805).

Almost surely, 2^{1453121869609} is an apocalyptic number.

It is an amenable number.

1453121869609 is a deficient number, since it is larger than the sum of its proper divisors (1).

1453121869609 is an equidigital number, since it uses as much as digits as its factorization.

1453121869609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 1453121869609 in words is "one trillion, four hundred fifty-three billion, one hundred twenty-one million, eight hundred sixty-nine thousand, six hundred nine".