226003391987 has 2 divisors, whose sum is σ = 226003391988. Its totient is φ = 226003391986.

The previous prime is 226003391981. The next prime is 226003392029. The reversal of 226003391987 is 789193300622.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 226003391987 - 2¹² = 226003387891 is a prime.

It is not a weakly prime, because it can be changed into another prime (226003391981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 113001695993 + 113001695994.

It is an arithmetic number, because the mean of its divisors is an integer number (113001695994).

Almost surely, 2^226003391987 is an apocalyptic number.

226003391987 is a deficient number, since it is larger than the sum of its proper divisors (1).

226003391987 is an equidigital number, since it uses as much as digits as its factorization.

226003391987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 50.

The spelling of 226003391987 in words is "two hundred twenty-six billion, three million, three hundred ninety-one thousand, nine hundred eighty-seven".