2238807336809 has 2 divisors, whose sum is σ = 2238807336810. Its totient is φ = 2238807336808.

The previous prime is 2238807336749. The next prime is 2238807336839. The reversal of 2238807336809 is 9086337088322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1843273259584 + 395534077225 = 1357672^2 + 628915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2238807336809 is a prime.

It is not a weakly prime, because it can be changed into another prime (2238807336839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1119403668404 + 1119403668405.

It is an arithmetic number, because the mean of its divisors is an integer number (1119403668405).

Almost surely, 2^{2238807336809} is an apocalyptic number.

It is an amenable number.

2238807336809 is a deficient number, since it is larger than the sum of its proper divisors (1).

2238807336809 is an equidigital number, since it uses as much as digits as its factorization.

2238807336809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 59.

The spelling of 2238807336809 in words is "two trillion, two hundred thirty-eight billion, eight hundred seven million, three hundred thirty-six thousand, eight hundred nine".