5157646064 has 80 divisors (see below), whose sum is σ = 10762942080. Its totient is φ = 2387024640.

The previous prime is 5157646057. The next prime is 5157646069. The reversal of 5157646064 is 4606467515.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5157646069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2667242 + ... + 2669174.

It is an arithmetic number, because the mean of its divisors is an integer number (134536776).

Almost surely, 2^5157646064 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 5157646064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5381471040).

5157646064 is an abundant number, since it is smaller than the sum of its proper divisors (5605296016).

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

5157646064 is a wasteful number, since it uses less digits than its factorization.

5157646064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2158 (or 2152 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The square root of 5157646064 is about 71816.7533657711. The cubic root of 5157646064 is about 1727.7617108974.

The spelling of 5157646064 in words is "five billion, one hundred fifty-seven million, six hundred forty-six thousand, sixty-four".