24545253145409 has 2 divisors, whose sum is σ = 24545253145410. Its totient is φ = 24545253145408.

The previous prime is 24545253145397. The next prime is 24545253145429. The reversal of 24545253145409 is 90454135254542.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24544493977600 + 759167809 = 4954240^2 + 27553^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-24545253145409 is a prime.

It is not a weakly prime, because it can be changed into another prime (24545253145429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12272626572704 + 12272626572705.

It is an arithmetic number, because the mean of its divisors is an integer number (12272626572705).

Almost surely, 2^{24545253145409} is an apocalyptic number.

It is an amenable number.

24545253145409 is a deficient number, since it is larger than the sum of its proper divisors (1).

24545253145409 is an equidigital number, since it uses as much as digits as its factorization.

24545253145409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280000, while the sum is 53.

The spelling of 24545253145409 in words is "twenty-four trillion, five hundred forty-five billion, two hundred fifty-three million, one hundred forty-five thousand, four hundred nine".