6419644534689 has 8 divisors (see below), whose sum is σ = 8559673671072. Its totient is φ = 4279689210720.

The previous prime is 6419644534673. The next prime is 6419644534711. The reversal of 6419644534689 is 9864354469146.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6419644534689 - 2⁴ = 6419644534673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6419644534609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18249847 + ... + 18598284.

It is an arithmetic number, because the mean of its divisors is an integer number (1069959208884).

Almost surely, 2^{6419644534689} is an apocalyptic number.

It is an amenable number.

6419644534689 is a deficient number, since it is larger than the sum of its proper divisors (2140029136383).

6419644534689 is a wasteful number, since it uses less digits than its factorization.

6419644534689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36906207.

The product of its digits is 537477120, while the sum is 69.

The spelling of 6419644534689 in words is "six trillion, four hundred nineteen billion, six hundred forty-four million, five hundred thirty-four thousand, six hundred eighty-nine".