6419909827 has 2 divisors, whose sum is σ = 6419909828. Its totient is φ = 6419909826.

The previous prime is 6419909731. The next prime is 6419909861. The reversal of 6419909827 is 7289099146.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6419909827 - 2¹¹ = 6419907779 is a prime.

It is a super-2 number, since 2×6419909827² = 82430484373622339858, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6419909927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3209954913 + 3209954914.

It is an arithmetic number, because the mean of its divisors is an integer number (3209954914).

Almost surely, 2^6419909827 is an apocalyptic number.

6419909827 is a deficient number, since it is larger than the sum of its proper divisors (1).

6419909827 is an equidigital number, since it uses as much as digits as its factorization.

6419909827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The square root of 6419909827 is about 80124.3397913518. The cubic root of 6419909827 is about 1858.5588160742.

It can be divided in two parts, 6419909 and 827, that added together give a triangular number (6420736 = T₃₅₈₃).

The spelling of 6419909827 in words is "six billion, four hundred nineteen million, nine hundred nine thousand, eight hundred twenty-seven".