426209311426 has 4 divisors (see below), whose sum is σ = 639313967142. Its totient is φ = 213104655712.

The previous prime is 426209311397. The next prime is 426209311427. The reversal of 426209311426 is 624113902624.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 269310140401 + 156899171025 = 518951^2 + 396105^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (426209311427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106552327855 + ... + 106552327858.

Almost surely, 2^426209311426 is an apocalyptic number.

426209311426 is a deficient number, since it is larger than the sum of its proper divisors (213104655716).

426209311426 is a wasteful number, since it uses less digits than its factorization.

426209311426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213104655715.

The product of its (nonzero) digits is 124416, while the sum is 40.

The spelling of 426209311426 in words is "four hundred twenty-six billion, two hundred nine million, three hundred eleven thousand, four hundred twenty-six".