455404727209 has 2 divisors, whose sum is σ = 455404727210. Its totient is φ = 455404727208.

The previous prime is 455404727179. The next prime is 455404727299. The reversal of 455404727209 is 902727404554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 262890001984 + 192514725225 = 512728^2 + 438765^2 .

It is a cyclic number.

It is not a de Polignac number, because 455404727209 - 2⁹ = 455404726697 is a prime.

It is not a weakly prime, because it can be changed into another prime (455404727299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227702363604 + 227702363605.

It is an arithmetic number, because the mean of its divisors is an integer number (227702363605).

Almost surely, 2^455404727209 is an apocalyptic number.

It is an amenable number.

455404727209 is a deficient number, since it is larger than the sum of its proper divisors (1).

455404727209 is an equidigital number, since it uses as much as digits as its factorization.

455404727209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 455404727209 in words is "four hundred fifty-five billion, four hundred four million, seven hundred twenty-seven thousand, two hundred nine".