6430544426 has 16 divisors (see below), whose sum is σ = 9915510696. Its totient is φ = 3125532096.

The previous prime is 6430544387. The next prime is 6430544441. The reversal of 6430544426 is 6244450346.

It can be written as a sum of positive squares in 4 ways, for example, as 5875989025 + 554555401 = 76655^2 + 23549^2 .

It is a super-2 number, since 2×6430544426² = 82703803229519338952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6430544426.

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 7 ways as a sum of consecutive naturals, for example, 43760 + ... + 121556.

Almost surely, 2^6430544426 is an apocalyptic number.

6430544426 is a deficient number, since it is larger than the sum of its proper divisors (3484966270).

6430544426 is a wasteful number, since it uses less digits than its factorization.

6430544426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78953.

The product of its (nonzero) digits is 276480, while the sum is 38.

The square root of 6430544426 is about 80190.6754305013. The cubic root of 6430544426 is about 1859.5844859400.

The spelling of 6430544426 in words is "six billion, four hundred thirty million, five hundred forty-four thousand, four hundred twenty-six".