6544213614 has 64 divisors (see below), whose sum is σ = 15433416000. Its totient is φ = 2048385024.

The previous prime is 6544213603. The next prime is 6544213649. The reversal of 6544213614 is 4163124456.

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, 404244 + ... + 420120.

It is an arithmetic number, because the mean of its divisors is an integer number (241147125).

Almost surely, 2^6544213614 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6544213614, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7716708000).

6544213614 is an abundant number, since it is smaller than the sum of its proper divisors (8889202386).

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

6544213614 is a wasteful number, since it uses less digits than its factorization.

6544213614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16354 (or 16348 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6544213614 is about 80896.3139704152. The cubic root of 6544213614 is about 1870.4775024320.

The spelling of 6544213614 in words is "six billion, five hundred forty-four million, two hundred thirteen thousand, six hundred fourteen".