6408641911 has 8 divisors (see below), whose sum is σ = 7336993664. Its totient is φ = 5483498040.

The previous prime is 6408641903. The next prime is 6408641947. The reversal of 6408641911 is 1191468046.

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

It is a cyclic number.

It is not a de Polignac number, because 6408641911 - 2³ = 6408641903 is a prime.

It is a super-2 number, since 2×6408641911² = 82141382286851463842, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6408641971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 797685 + ... + 805678.

It is an arithmetic number, because the mean of its divisors is an integer number (917124208).

Almost surely, 2^6408641911 is an apocalyptic number.

6408641911 is a deficient number, since it is larger than the sum of its proper divisors (928351753).

6408641911 is a wasteful number, since it uses less digits than its factorization.

6408641911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603941.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 6408641911 is about 80053.9937229867. The cubic root of 6408641911 is about 1857.4708283753.

The spelling of 6408641911 in words is "six billion, four hundred eight million, six hundred forty-one thousand, nine hundred eleven".