6431418046819 has 2 divisors, whose sum is σ = 6431418046820. Its totient is φ = 6431418046818.

The previous prime is 6431418046789. The next prime is 6431418046831. The reversal of 6431418046819 is 9186408141346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6431418046819 - 2⁹ = 6431418046307 is a prime.

It is a super-2 number, since 2×6431418046819² (a number of 26 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6431418046819.

It is not a weakly prime, because it can be changed into another prime (6431418043819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3215709023409 + 3215709023410.

It is an arithmetic number, because the mean of its divisors is an integer number (3215709023410).

Almost surely, 2^{6431418046819} is an apocalyptic number.

6431418046819 is a deficient number, since it is larger than the sum of its proper divisors (1).

6431418046819 is an equidigital number, since it uses as much as digits as its factorization.

6431418046819 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3981312, while the sum is 55.

The spelling of 6431418046819 in words is "six trillion, four hundred thirty-one billion, four hundred eighteen million, forty-six thousand, eight hundred nineteen".