5220418878 has 24 divisors (see below), whose sum is σ = 11320482888. Its totient is φ = 1738666512.

The previous prime is 5220418867. The next prime is 5220418883. The reversal of 5220418878 is 8788140225.

It is a happy number.

5220418878 is a `hidden beast` number, since 5 + 220 + 418 + 8 + 7 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100801 + ... + 143532.

It is an arithmetic number, because the mean of its divisors is an integer number (471686787).

Almost surely, 2^5220418878 is an apocalyptic number.

5220418878 is an abundant number, since it is smaller than the sum of its proper divisors (6100064010).

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

5220418878 is a wasteful number, since it uses less digits than its factorization.

5220418878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245528 (or 245525 counting only the distinct ones).

The product of its (nonzero) digits is 286720, while the sum is 45.

The square root of 5220418878 is about 72252.4662416447. The cubic root of 5220418878 is about 1734.7428939640.

It can be divided in two parts, 5220418 and 878, that added together give a triangular number (5221296 = T₃₂₃₁).

The spelling of 5220418878 in words is "five billion, two hundred twenty million, four hundred eighteen thousand, eight hundred seventy-eight".