6214659864 has 128 divisors (see below), whose sum is σ = 18414950400. Its totient is φ = 1710051840.

The previous prime is 6214659833. The next prime is 6214659881. The reversal of 6214659864 is 4689564126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2244609 + ... + 2247375.

It is an arithmetic number, because the mean of its divisors is an integer number (143866800).

Almost surely, 2^6214659864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6214659864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9207475200).

6214659864 is an abundant number, since it is smaller than the sum of its proper divisors (12200290536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6214659864 is a wasteful number, since it uses less digits than its factorization.

6214659864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3273 (or 3269 counting only the distinct ones).

The product of its digits is 2488320, while the sum is 51.

The square root of 6214659864 is about 78833.1140067421. The cubic root of 6214659864 is about 1838.5373402831.

The spelling of 6214659864 in words is "six billion, two hundred fourteen million, six hundred fifty-nine thousand, eight hundred sixty-four".