6338942064 has 400 divisors, whose sum is σ = 22988528640. Its totient is φ = 1641669120.

The previous prime is 6338942053. The next prime is 6338942147. The reversal of 6338942064 is 4602498336.

6338942064 is a `hidden beast` number, since 63 + 389 + 4 + 206 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 6957769 + ... + 6958679.

Almost surely, 2^6338942064 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 6338942064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11494264320).

6338942064 is an abundant number, since it is smaller than the sum of its proper divisors (16649586576).

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

6338942064 is a wasteful number, since it uses less digits than its factorization.

6338942064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010 (or 995 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 6338942064 is about 79617.4733585536. The cubic root of 6338942064 is about 1850.7123688516.

The spelling of 6338942064 in words is "six billion, three hundred thirty-eight million, nine hundred forty-two thousand, sixty-four".