6338740518 has 72 divisors (see below), whose sum is σ = 15812710056. Its totient is φ = 1819713600.

The previous prime is 6338740501. The next prime is 6338740543. The reversal of 6338740518 is 8150478336.

6338740518 is a `hidden beast` number, since 63 + 3 + 8 + 74 + 0 + 518 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 27138 + ... + 115818.

It is an arithmetic number, because the mean of its divisors is an integer number (219620973).

Almost surely, 2^6338740518 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6338740518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7906355028).

6338740518 is an abundant number, since it is smaller than the sum of its proper divisors (9473969538).

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

6338740518 is a wasteful number, since it uses less digits than its factorization.

6338740518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88738 (or 88716 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 6338740518 is about 79616.2076338731. The cubic root of 6338740518 is about 1850.6927542416.

The spelling of 6338740518 in words is "six billion, three hundred thirty-eight million, seven hundred forty thousand, five hundred eighteen".