231646298895899 has 2 divisors, whose sum is σ = 231646298895900. Its totient is φ = 231646298895898.

The previous prime is 231646298895889. The next prime is 231646298895911. The reversal of 231646298895899 is 998598892646132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 231646298895899 - 2⁴⁰ = 230546787268123 is a prime.

It is not a weakly prime, because it can be changed into another prime (231646298895839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115823149447949 + 115823149447950.

It is an arithmetic number, because the mean of its divisors is an integer number (115823149447950).

Almost surely, 2^{231646298895899} is an apocalyptic number.

231646298895899 is a deficient number, since it is larger than the sum of its proper divisors (1).

231646298895899 is an equidigital number, since it uses as much as digits as its factorization.

231646298895899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 29023764480, while the sum is 89.

The spelling of 231646298895899 in words is "two hundred thirty-one trillion, six hundred forty-six billion, two hundred ninety-eight million, eight hundred ninety-five thousand, eight hundred ninety-nine".