6478041919 has 2 divisors, whose sum is σ = 6478041920. Its totient is φ = 6478041918.

The previous prime is 6478041907. The next prime is 6478041923. The reversal of 6478041919 is 9191408746.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6478041919 - 2¹¹ = 6478039871 is a prime.

It is a super-2 number, since 2×6478041919² = 83930054208642405122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6478041959) 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, 3239020959 + 3239020960.

It is an arithmetic number, because the mean of its divisors is an integer number (3239020960).

Almost surely, 2^6478041919 is an apocalyptic number.

6478041919 is a deficient number, since it is larger than the sum of its proper divisors (1).

6478041919 is an equidigital number, since it uses as much as digits as its factorization.

6478041919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 49.

The square root of 6478041919 is about 80486.2840426864. The cubic root of 6478041919 is about 1864.1517003049.

The spelling of 6478041919 in words is "six billion, four hundred seventy-eight million, forty-one thousand, nine hundred nineteen".