5215878864 has 60 divisors (see below), whose sum is σ = 16682536416. Its totient is φ = 1490250816.

The previous prime is 5215878821. The next prime is 5215878907. The reversal of 5215878864 is 4688785125.

5215878864 is a `hidden beast` number, since 52 + 1 + 587 + 8 + 8 + 6 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (5215878821) and next prime (5215878907).

It is a self number, because there is not a number n which added to its sum of digits gives 5215878864.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2586234 + ... + 2588249.

Almost surely, 2^5215878864 is an apocalyptic number.

It is an amenable number.

5215878864 is an abundant number, since it is smaller than the sum of its proper divisors (11466657552).

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

5215878864 is a wasteful number, since it uses less digits than its factorization.

5215878864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5174504 (or 5174495 counting only the distinct ones).

The product of its digits is 4300800, while the sum is 54.

The square root of 5215878864 is about 72221.0416983859. The cubic root of 5215878864 is about 1734.2398665632.

The spelling of 5215878864 in words is "five billion, two hundred fifteen million, eight hundred seventy-eight thousand, eight hundred sixty-four".