233925879449 has 2 divisors, whose sum is σ = 233925879450. Its totient is φ = 233925879448.

The previous prime is 233925879443. The next prime is 233925879457. The reversal of 233925879449 is 944978529332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 178364318224 + 55561561225 = 422332^2 + 235715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233925879449 is a prime.

It is not a weakly prime, because it can be changed into another prime (233925879443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 116962939724 + 116962939725.

It is an arithmetic number, because the mean of its divisors is an integer number (116962939725).

Almost surely, 2^233925879449 is an apocalyptic number.

It is an amenable number.

233925879449 is a deficient number, since it is larger than the sum of its proper divisors (1).

233925879449 is an equidigital number, since it uses as much as digits as its factorization.

233925879449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 117573120, while the sum is 65.

The spelling of 233925879449 in words is "two hundred thirty-three billion, nine hundred twenty-five million, eight hundred seventy-nine thousand, four hundred forty-nine".