229409904887 has 2 divisors, whose sum is σ = 229409904888. Its totient is φ = 229409904886.

The previous prime is 229409904851. The next prime is 229409904931. The reversal of 229409904887 is 788409904922.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 229409904887 - 2¹² = 229409900791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (229409964887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 114704952443 + 114704952444.

It is an arithmetic number, because the mean of its divisors is an integer number (114704952444).

Almost surely, 2^229409904887 is an apocalyptic number.

229409904887 is a deficient number, since it is larger than the sum of its proper divisors (1).

229409904887 is an equidigital number, since it uses as much as digits as its factorization.

229409904887 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The spelling of 229409904887 in words is "two hundred twenty-nine billion, four hundred nine million, nine hundred four thousand, eight hundred eighty-seven".