1823865448313 has 2 divisors, whose sum is σ = 1823865448314. Its totient is φ = 1823865448312.

The previous prime is 1823865448309. The next prime is 1823865448409. The reversal of 1823865448313 is 3138445683281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1238352772969 + 585512675344 = 1112813^2 + 765188^2 .

It is an emirp because it is prime and its reverse (3138445683281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1823865448313 - 2² = 1823865448309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1823865441313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911932724156 + 911932724157.

It is an arithmetic number, because the mean of its divisors is an integer number (911932724157).

Almost surely, 2^{1823865448313} is an apocalyptic number.

It is an amenable number.

1823865448313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1823865448313 is an equidigital number, since it uses as much as digits as its factorization.

1823865448313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13271040, while the sum is 56.

The spelling of 1823865448313 in words is "one trillion, eight hundred twenty-three billion, eight hundred sixty-five million, four hundred forty-eight thousand, three hundred thirteen".