426409999993 has 2 divisors, whose sum is σ = 426409999994. Its totient is φ = 426409999992.

The previous prime is 426409999979. The next prime is 426410000057. The reversal of 426409999993 is 399999904624.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 417157099129 + 9252900864 = 645877^2 + 96192^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-426409999993 is a prime.

It is not a weakly prime, because it can be changed into another prime (426409999913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213204999996 + 213204999997.

It is an arithmetic number, because the mean of its divisors is an integer number (213204999997).

Almost surely, 2^426409999993 is an apocalyptic number.

It is an amenable number.

426409999993 is a deficient number, since it is larger than the sum of its proper divisors (1).

426409999993 is an equidigital number, since it uses as much as digits as its factorization.

426409999993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 306110016, while the sum is 73.

The spelling of 426409999993 in words is "four hundred twenty-six billion, four hundred nine million, nine hundred ninety-nine thousand, nine hundred ninety-three".