5191864064 has 72 divisors (see below), whose sum is σ = 10587265920. Its totient is φ = 2540284928.

The previous prime is 5191864049. The next prime is 5191864079. The reversal of 5191864064 is 4604681915.

It is an interprime number because it is at equal distance from previous prime (5191864049) and next prime (5191864079).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3971699 + ... + 3973005.

It is an arithmetic number, because the mean of its divisors is an integer number (147045360).

Almost surely, 2^5191864064 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 5191864064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5293632960).

5191864064 is an abundant number, since it is smaller than the sum of its proper divisors (5395401856).

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

5191864064 is a wasteful number, since it uses less digits than its factorization.

5191864064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645 (or 1631 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 5191864064 is about 72054.5908599862. The cubic root of 5191864064 is about 1731.5741921280.

The spelling of 5191864064 in words is "five billion, one hundred ninety-one million, eight hundred sixty-four thousand, sixty-four".