6426564019 has 2 divisors, whose sum is σ = 6426564020. Its totient is φ = 6426564018.

The previous prime is 6426564013. The next prime is 6426564031. The reversal of 6426564019 is 9104656246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6426564019 - 2¹¹ = 6426561971 is a prime.

It is a super-2 number, since 2×6426564019² = 82601450180610864722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6426564013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3213282009 + 3213282010.

It is an arithmetic number, because the mean of its divisors is an integer number (3213282010).

Almost surely, 2^6426564019 is an apocalyptic number.

6426564019 is a deficient number, since it is larger than the sum of its proper divisors (1).

6426564019 is an equidigital number, since it uses as much as digits as its factorization.

6426564019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 6426564019 is about 80165.8531982290. The cubic root of 6426564019 is about 1859.2007221215.

The spelling of 6426564019 in words is "six billion, four hundred twenty-six million, five hundred sixty-four thousand, nineteen".