426409999913 has 2 divisors, whose sum is σ = 426409999914. Its totient is φ = 426409999912.

The previous prime is 426409999909. The next prime is 426409999979. The reversal of 426409999913 is 319999904624.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 407384763289 + 19025236624 = 638267^2 + 137932^2 .

It is a cyclic number.

It is not a de Polignac number, because 426409999913 - 2² = 426409999909 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 426409999913.

It is not a weakly prime, because it can be changed into another prime (426409999993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213204999956 + 213204999957.

It is an arithmetic number, because the mean of its divisors is an integer number (213204999957).

Almost surely, 2^426409999913 is an apocalyptic number.

It is an amenable number.

426409999913 is a deficient number, since it is larger than the sum of its proper divisors (1).

426409999913 is an equidigital number, since it uses as much as digits as its factorization.

426409999913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34012224, while the sum is 65.

The spelling of 426409999913 in words is "four hundred twenty-six billion, four hundred nine million, nine hundred ninety-nine thousand, nine hundred thirteen".