5128641315 has 48 divisors (see below), whose sum is σ = 10601330688. Its totient is φ = 2242582848.

The previous prime is 5128641293. The next prime is 5128641319. The reversal of 5128641315 is 5131468215.

5128641315 is a `hidden beast` number, since 5 + 1 + 2 + 8 + 641 + 3 + 1 + 5 = 666.

5128641315 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5128641315 - 2⁵ = 5128641283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5128641315.

It is not an unprimeable number, because it can be changed into a prime (5128641319) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 346699 + ... + 361188.

It is an arithmetic number, because the mean of its divisors is an integer number (220861056).

Almost surely, 2^5128641315 is an apocalyptic number.

5128641315 is an abundant number, since it is smaller than the sum of its proper divisors (5472689373).

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

5128641315 is a wasteful number, since it uses less digits than its factorization.

5128641315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707928 (or 707925 counting only the distinct ones).

The product of its digits is 28800, while the sum is 36.

The square root of 5128641315 is about 71614.5328477398. The cubic root of 5128641315 is about 1724.5168501960.

The spelling of 5128641315 in words is "five billion, one hundred twenty-eight million, six hundred forty-one thousand, three hundred fifteen".