426243806784 has 84 divisors (see below), whose sum is σ = 1235478598380. Its totient is φ = 140484833280.

The previous prime is 426243806777. The next prime is 426243806801. The reversal of 426243806784 is 487608342624.

426243806784 is a `hidden beast` number, since 4 + 2 + 624 + 3 + 8 + 0 + 6 + 7 + 8 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 41645381184 + 384598425600 = 204072^2 + 620160^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 426243806784.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 4106077 + ... + 4208604.

Almost surely, 2^426243806784 is an apocalyptic number.

It is an amenable number.

426243806784 is an abundant number, since it is smaller than the sum of its proper divisors (809234791596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

426243806784 is a wasteful number, since it uses less digits than its factorization.

426243806784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8314788 (or 8314775 counting only the distinct ones).

The product of its (nonzero) digits is 12386304, while the sum is 54.

The spelling of 426243806784 in words is "four hundred twenty-six billion, two hundred forty-three million, eight hundred six thousand, seven hundred eighty-four".